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These are the user uploaded subtitles that are being translated: 1 00:00:01,400 --> 00:00:05,720 The Roman settlement of Baiae 2 00:00:05,840 --> 00:00:09,760 was the Las Vegas of the Roman Empire - 3 00:00:09,880 --> 00:00:12,200 a place where the rich and powerful came to relax, 4 00:00:12,320 --> 00:00:17,200 party and carry out illicit affairs. 5 00:00:18,280 --> 00:00:20,680 Lured by Baiae's volcanic hot springs, the Romans built 6 00:00:20,720 --> 00:00:25,080 opulent villas and baths here on the Gulf of Naples. 7 00:00:25,200 --> 00:00:27,200 Today, it is still famed for its precious marbles, 8 00:00:27,280 --> 00:00:31,640 mosaics and sculptures. 9 00:00:33,760 --> 00:00:36,320 The ancient authors wrote a lot about Baiae and described Baiae 10 00:00:36,440 --> 00:00:38,960 as a little Rome - as a place for the holiday, 11 00:00:39,080 --> 00:00:40,680 a place grounded with all the aristocracy, 12 00:00:40,800 --> 00:00:42,600 but also with young people, with people walking 13 00:00:42,680 --> 00:00:52,840 on the beach, looking to the sea, people drinking wine. 14 00:00:53,120 --> 00:00:53,800 A fun atmosphere. 15 00:00:53,840 --> 00:00:55,720 It sounds like a party town. 16 00:00:55,800 --> 00:00:55,960 Exactly. 17 00:00:56,040 --> 00:00:57,800 LAUGHTER. 18 00:00:57,920 --> 00:00:59,720 But over several centuries the city slowly sunk 19 00:00:59,760 --> 00:01:04,800 beneath the sea. 20 00:01:06,280 --> 00:01:06,520 Burning. 21 00:01:06,600 --> 00:01:07,680 This area? 22 00:01:07,720 --> 00:01:10,520 More dangerous than...there. 23 00:01:10,640 --> 00:01:13,160 I wish you told me that when we were over there. 24 00:01:13,280 --> 00:01:15,360 Why are you telling me that when we're here? 25 00:01:15,440 --> 00:01:17,520 The underwater site is a treasure trove of mosaics 26 00:01:17,600 --> 00:01:25,880 and marbles dating back 2,000 years. 27 00:01:25,920 --> 00:01:30,120 But today they are at risk. 28 00:01:30,200 --> 00:01:32,240 Now a team of archaeologists and engineers are developing 29 00:01:32,400 --> 00:01:33,680 some surprising new technologies to protect 30 00:01:33,800 --> 00:01:39,880 the underwater site for future generations. 31 00:01:55,680 --> 00:02:00,240 We know Baiae as the underwater city. 32 00:02:00,360 --> 00:02:04,600 Baiae is not an underwater city, it is kilometres 33 00:02:04,720 --> 00:02:09,360 of the ancient waterfront that is now underwater 34 00:02:09,480 --> 00:02:14,200 because of a sudden change of the sea level. 35 00:02:14,280 --> 00:02:16,160 You can see underwater the remains of actual 36 00:02:16,280 --> 00:02:18,240 the villas, also the remains of marbles, streets, shops. 37 00:02:18,360 --> 00:02:20,480 Is there anything else like that in the world? 38 00:02:20,560 --> 00:02:22,880 I don't think that you can find other underwater archaeological 39 00:02:22,920 --> 00:02:27,200 sites in the world like Baiae. 40 00:02:28,720 --> 00:02:31,320 Baiae, on the Gulf of Naples, is one of the most 41 00:02:31,400 --> 00:02:34,480 extraordinary ancient sites in Italy. 42 00:02:34,600 --> 00:02:37,120 The Romans came here for the same reasons we do - 43 00:02:37,240 --> 00:02:39,000 the sparkling Mediterranean, the balmy weather, the lush 44 00:02:39,040 --> 00:02:47,400 vegetation and vineyards. 45 00:02:47,520 --> 00:02:49,800 They were also drawn to the area's thermal springs - 46 00:02:49,880 --> 00:02:51,720 the result of course, of the volcanic activity 47 00:02:51,800 --> 00:02:52,440 beneath their feet. 48 00:02:52,520 --> 00:02:54,360 As the Roman Republic lapsed into Empire, Baiae's 49 00:02:54,400 --> 00:03:03,640 reputation only grew. 50 00:03:03,760 --> 00:03:06,360 In AD 39, Caligula built a bridge made up of merchant 51 00:03:06,480 --> 00:03:08,720 ships linked together and then covered with earth from Baiae 52 00:03:08,840 --> 00:03:10,640 to nearby Pozzuoli - three miles long - 53 00:03:10,680 --> 00:03:18,240 and rode over it in a chariot. 54 00:03:18,360 --> 00:03:20,560 And in AD 59, Nero had his mother, Agrippina, 55 00:03:20,600 --> 00:03:25,400 murdered in her villa here. 56 00:03:25,520 --> 00:03:27,880 The later Emperor Hadrian would have a more peaceful end 57 00:03:28,000 --> 00:03:30,520 to his life, dying of natural causes in his Baiae palace 58 00:03:30,560 --> 00:03:37,120 in AD 138. 59 00:03:37,160 --> 00:03:38,280 University of Naples "L'Orientale" archaeologist 60 00:03:38,360 --> 00:03:42,800 Michele Stefanile showed me around. 61 00:03:42,920 --> 00:03:44,800 Baiae was a luxury resort with incredible architectures 62 00:03:44,880 --> 00:03:47,160 connected with the most eminent men of the Late Republic 63 00:03:47,240 --> 00:03:48,320 and the early Imperial times. 64 00:03:48,440 --> 00:03:50,960 The ancient authors wrote a lot about Baiae and they described 65 00:03:51,080 --> 00:03:53,600 Baiae as a Rome - as a place for the holiday, 66 00:03:53,720 --> 00:03:55,320 a place crowded with all the aristocracy, 67 00:03:55,440 --> 00:03:57,240 but also the young people, with people walking 68 00:03:57,320 --> 00:04:12,680 on the beach and looking to the sea, people drinking wine. 69 00:04:12,760 --> 00:04:14,840 A fun atmosphere, it sounds like a party town. 70 00:04:14,880 --> 00:04:15,000 Exactly. 71 00:04:15,120 --> 00:04:16,520 People like Seneca, for example, decided 72 00:04:16,600 --> 00:04:19,160 to have his villa not in Baiae but on a hill 73 00:04:19,200 --> 00:04:19,840 in that direction. 74 00:04:19,960 --> 00:04:27,680 Just to stay a little bit isolated for the... 75 00:04:27,720 --> 00:04:30,400 It was too loud for him? 76 00:04:30,440 --> 00:04:31,560 Exactly. 77 00:04:31,600 --> 00:04:32,560 Too crazy for Seneca. 78 00:04:32,600 --> 00:04:33,040 Exactly. 79 00:04:33,160 --> 00:04:34,680 And when did this whole area disappear? 80 00:04:34,840 --> 00:04:36,840 We know that after the Late Antiquity, this part 81 00:04:36,960 --> 00:04:38,560 of the territory, of the Phlegraean region 82 00:04:38,600 --> 00:04:50,320 was abandoned. 83 00:04:50,480 --> 00:04:52,240 So, how much to the water level rise? 84 00:04:52,360 --> 00:04:54,720 It depends on the part of Baiae, but normally it's 85 00:04:54,840 --> 00:04:56,120 somewhere between four and six metres. 86 00:04:56,160 --> 00:04:56,400 Wow. 87 00:04:56,440 --> 00:04:57,320 It's a big change. 88 00:04:57,360 --> 00:04:58,240 It's a big one. 89 00:04:58,320 --> 00:04:59,480 Yes, a very big change. 90 00:04:59,600 --> 00:05:01,400 That's why you can see underwater, not only 91 00:05:01,440 --> 00:05:02,600 the floors, but also walls. 92 00:05:02,680 --> 00:05:05,000 It's one of the sites in the world with this 93 00:05:05,120 --> 00:05:10,720 concentration of mosaics from the Roman times, 94 00:05:10,760 --> 00:05:11,160 times, underwater. 95 00:05:11,240 --> 00:05:14,040 So, you can ride on the water and read a mystery five 96 00:05:14,120 --> 00:05:15,440 centuries long or six centuries long. 97 00:05:15,560 --> 00:05:16,680 So, tell me what happened. 98 00:05:16,720 --> 00:05:17,880 How did it get submerged? 99 00:05:17,960 --> 00:05:20,520 The history of the change of the sea level in this 100 00:05:20,600 --> 00:05:27,040 territory is connected with the volcanic activity. 101 00:05:27,200 --> 00:05:29,720 Most of us have heard of Mount Vesuvius, but it turns 102 00:05:29,840 --> 00:05:35,440 out there's another volcanic zone near Naples. 103 00:05:35,480 --> 00:05:35,920 It's burning. 104 00:05:36,000 --> 00:05:40,160 It's more dangerous than...there. 105 00:05:40,240 --> 00:05:42,720 I wish you told me that when we were over there! 106 00:05:42,840 --> 00:05:44,920 Why are you telling me that when we're here? 107 00:05:45,000 --> 00:05:53,240 This area - called Campi Flegrei, or the Phlegraean 108 00:05:53,320 --> 00:05:54,440 Fields - is still active. 109 00:05:54,520 --> 00:05:56,080 It's also why Baiae is now underwater. 110 00:05:56,200 --> 00:05:57,800 The movement of magma underground actually sank 111 00:05:57,920 --> 00:06:03,960 the ancient city's ground level. 112 00:07:37,240 --> 00:07:39,360 Campi Flegrei is one of the 20 known supervolcanoes 113 00:07:39,480 --> 00:07:41,480 on the planet, capable of erupting with a volume 114 00:07:41,600 --> 00:07:43,680 of thousands of times stronger than an average volcano. 115 00:07:43,760 --> 00:07:46,360 Vincenzo tells me that if it were to blow at maximum 116 00:07:46,400 --> 00:07:48,480 capacity today, it would make the AD 79 eruption 117 00:07:48,600 --> 00:07:50,400 of Mount Vesuvius - that destroyed Pompeii - 118 00:07:50,440 --> 00:08:00,320 look like a puppy's sneeze. 119 00:09:49,160 --> 00:09:51,000 Carmine Minopoli is a researcher at the National 120 00:09:51,120 --> 00:09:52,160 Institute of Geophysics and Volcanology. 121 00:09:52,280 --> 00:09:54,320 He walked me through how the monitoring system works, 122 00:09:54,440 --> 00:10:04,600 but before he did, we spoke in one of the stranger places 123 00:10:04,720 --> 00:10:07,520 I've ever done an interview - inside a building that had been 124 00:10:07,560 --> 00:10:09,360 abandoned because of the heat and gases caused 125 00:10:09,480 --> 00:10:12,760 by the volcanic vents beneath it. 126 00:11:02,280 --> 00:11:04,400 All of that volcanic activity remains a risk today. 127 00:11:04,520 --> 00:11:06,800 But it's also what put Baiae underwater 1,500 years ago. 128 00:11:06,880 --> 00:11:08,480 The water has helped preserve the artefacts, 129 00:11:08,520 --> 00:11:15,120 but it can also damage them. 130 00:11:18,680 --> 00:11:20,560 Barbara Davidde, director of the unit of underwater 131 00:11:20,680 --> 00:11:22,240 archaeology at Italy's High Institute for Conservation 132 00:11:22,320 --> 00:11:30,360 and Restoration, has been working at Baiae since 1993. 133 00:11:30,440 --> 00:11:32,280 So, 1,500 years these artefact have been underwater. 134 00:11:32,440 --> 00:11:35,200 What does the sea water do to artefacts over such a long 135 00:11:35,240 --> 00:11:41,760 period of time? 136 00:11:41,840 --> 00:11:42,960 Archaeological remains were protected underwater, 137 00:11:43,000 --> 00:11:55,480 thanks to the sea. 138 00:11:55,600 --> 00:12:00,680 But if they are on the seabed, open, and so not covered 139 00:12:00,800 --> 00:12:04,000 by the sand, they are attacked by marine organisms. 140 00:12:04,040 --> 00:12:08,880 We call bioerosion. 141 00:12:09,000 --> 00:12:19,960 There are sponges and bacteria, also bivalve animals, 142 00:12:20,040 --> 00:12:22,160 organisms, so there is a big variety of bioeroders. 143 00:12:22,240 --> 00:12:30,320 Some statues that are recovered from the sea are completely 144 00:12:30,360 --> 00:12:31,800 destroyed or partially destroyed or sometimes 145 00:12:31,840 --> 00:12:32,840 that we found 146 00:12:32,960 --> 00:12:35,600 that the neck, the head, the hand, is lost. 147 00:12:35,720 --> 00:12:38,040 And all the portion of the statues that are covered 148 00:12:38,080 --> 00:12:43,920 by sand are in good condition. 149 00:12:43,960 --> 00:12:48,400 Concerning the mosaics, for example, we can see some 150 00:12:48,480 --> 00:12:54,480 small holes that don't look so dangerous for the artefacts, 151 00:12:54,520 --> 00:12:58,400 but if we analyse with a microscope these holes, 152 00:12:58,520 --> 00:13:01,960 we will see that inside the tessera, inside the stone, 153 00:13:02,080 --> 00:13:06,720 the hole is not small but it's big, large. 154 00:13:06,800 --> 00:13:18,520 And the monitoring of the site is the solution of this. 155 00:13:18,640 --> 00:13:20,720 At the Archaeological Museum of Campi Flegrei, one piece 156 00:13:20,800 --> 00:13:23,120 of artwork after another shows the damage animals can do. 157 00:13:23,200 --> 00:13:33,280 While it's common to see ancient Roman statues missing 158 00:13:33,360 --> 00:13:35,680 arms or heads, the items in this collection are different. 159 00:13:35,760 --> 00:13:37,840 A veiled woman has been covered with what almost 160 00:13:37,880 --> 00:13:46,280 look like pockmarks. 161 00:13:46,360 --> 00:13:48,440 A base with a dedication to Emperor Hadrian loses 162 00:13:48,560 --> 00:13:50,560 all shape at the top, like a half-melted candle. 163 00:13:50,680 --> 00:14:00,280 This 74cm statue of Zeus on his throne dating 164 00:14:00,360 --> 00:14:03,560 to the first century BC is covered with what looks 165 00:14:03,640 --> 00:14:05,440 like white scrawlings - the remnants of marine 166 00:14:05,520 --> 00:14:08,040 and crustaceans. 167 00:14:08,080 --> 00:14:09,680 But these organisms weren't his only challenge. 168 00:14:09,760 --> 00:14:12,080 The Zeus was likely stolen from the sea by looters. 169 00:14:12,120 --> 00:14:27,200 He wound up in the collection of the J Paul Getty Museum 170 00:14:27,320 --> 00:14:29,400 in Los Angeles, acquired by a curator later indicted 171 00:14:29,480 --> 00:14:31,080 for conspiracy to traffic in illegal antiquities. 172 00:14:31,200 --> 00:14:33,440 He was returned to the Campi Flegrei museum in 2018. 173 00:14:33,600 --> 00:14:35,640 The other sculptures in the museum are now safe 174 00:14:35,680 --> 00:14:42,400 from marine organisms. 175 00:14:42,480 --> 00:14:44,320 But the artefacts that remain below the sea, 176 00:14:44,440 --> 00:14:46,520 including the precious floors that make up the largest 177 00:14:46,640 --> 00:14:48,440 collection of underwater Roman mosaics in the world, 178 00:14:48,480 --> 00:14:53,360 remain at risk. 179 00:14:53,440 --> 00:14:55,960 Finally, it was time for me to go down and see 180 00:14:56,000 --> 00:14:56,640 it for myself. 181 00:14:56,760 --> 00:14:59,080 I was invited to join the team testing new technologies 182 00:14:59,200 --> 00:15:01,480 to help better monitor the erosion, but also to help 183 00:15:01,560 --> 00:15:05,240 the public engage with the site in new ways. 184 00:15:05,360 --> 00:15:06,920 Chiara Petrioli is professor of computer science 185 00:15:07,000 --> 00:15:08,640 at the University of Rome "La Sapienza", 186 00:15:08,760 --> 00:15:20,520 and the interdisciplinary project MUSAS' site 187 00:15:20,600 --> 00:15:20,760 coordinator. 188 00:15:20,840 --> 00:15:23,600 She is behind one of the more ambitious aspects of MUSAS - 189 00:15:23,720 --> 00:15:24,840 its underwater wireless sensor networks. 190 00:15:24,960 --> 00:15:27,240 So, what are the technologies you're testing here this week? 191 00:15:27,320 --> 00:15:29,120 This week, we are testing underwater drones supporting 192 00:15:29,240 --> 00:15:30,320 archaeologists in discovering the site. 193 00:15:30,440 --> 00:15:32,320 We are testing underwater wireless sensor networks that 194 00:15:32,400 --> 00:15:34,720 allow to gather in real-time, data on the conservation status 195 00:15:34,760 --> 00:15:40,680 of the site. 196 00:15:40,800 --> 00:15:43,120 The water quality, the CO2, because here we have very 197 00:15:43,200 --> 00:15:45,040 active volcanic activity and it's important to know 198 00:15:45,080 --> 00:15:49,800 what's happening there. 199 00:15:49,880 --> 00:15:52,000 And also images that we can transmit in real-time, 200 00:15:52,080 --> 00:15:58,560 compressed through novel algorithms from the underwater 201 00:15:58,600 --> 00:15:58,960 environment. 202 00:15:59,040 --> 00:16:01,120 These innovations represent a major change from how things 203 00:16:01,160 --> 00:16:02,320 were done in the past. 204 00:16:02,440 --> 00:16:04,440 They mean that information and pictures about any problems 205 00:16:04,560 --> 00:16:06,880 in the site, like erosion or even looting, can be 206 00:16:06,920 --> 00:16:24,280 communicated much more quickly. 207 00:16:24,360 --> 00:16:25,720 Not only can underwater archaeologists communicate 208 00:16:25,800 --> 00:16:27,840 while they are diving, but we can get data 209 00:16:27,960 --> 00:16:30,040 in real-time about the site, even when archaeologists aren't 210 00:16:30,080 --> 00:16:30,400 there. 211 00:16:30,520 --> 00:16:32,680 So, we have also developed a system for divers. 212 00:16:32,760 --> 00:16:35,520 On the other hand, we are able to localise and we have 213 00:16:35,600 --> 00:16:37,680 developed a way to represent how these underwater cultural 214 00:16:37,760 --> 00:16:39,880 heritage sites were in the past using virtual reality, 215 00:16:40,000 --> 00:16:42,000 so that you can actually have an enhanced experience 216 00:16:42,040 --> 00:16:45,120 visiting the site. 217 00:16:45,240 --> 00:16:47,320 And you can also track in a WhatsApp-like matter 218 00:16:47,360 --> 00:16:49,920 with the rest of the divers and with your beloved ones 219 00:16:50,000 --> 00:16:52,320 on the other side of the planet, and exchange images 220 00:16:52,400 --> 00:17:07,280 or exchange your feelings, even when you are diving. 221 00:17:07,400 --> 00:17:09,640 The way this is being done is through an underwater 222 00:17:09,720 --> 00:17:22,440 Internet. 223 00:17:22,520 --> 00:17:23,880 That's more difficult than it sounds. 224 00:17:23,960 --> 00:17:25,520 Wi-fi, for example, doesn't travel far underwater. 225 00:17:25,680 --> 00:17:27,440 Instead, Petrioli's team came up with the idea 226 00:17:27,520 --> 00:17:29,160 of using acoustics inspired by marine mammals. 227 00:17:29,280 --> 00:17:31,320 So, you have to use a completely different way 228 00:17:31,400 --> 00:17:33,520 of communicating, for very short range, a few metres, 229 00:17:33,640 --> 00:17:34,960 which is short-range in this environment, 230 00:17:35,000 --> 00:17:36,240 you can use wireless optical. 231 00:17:36,360 --> 00:17:38,720 But mostly you have to use the way of communicating 232 00:17:38,760 --> 00:17:39,320 of marine mammals. 233 00:17:39,440 --> 00:17:41,080 So, you need to use acoustic communication. 234 00:17:41,160 --> 00:17:43,480 And this is really challenging because the sea parameters may 235 00:17:43,520 --> 00:17:43,720 change. 236 00:17:43,800 --> 00:17:44,840 The temperature and salinity change. 237 00:17:44,960 --> 00:17:46,560 And this affects the way communication works. 238 00:17:46,640 --> 00:17:49,000 And it's also, you know, a ship passing by, like, 239 00:17:49,080 --> 00:17:51,120 we have right now or water motorbike, this affects 240 00:17:51,160 --> 00:17:52,080 the ability to communicate. 241 00:17:52,160 --> 00:17:54,280 Even the wind rising so that the surface provides 242 00:17:54,360 --> 00:17:55,920 changes, affects the communication, then two devices 243 00:17:56,000 --> 00:17:57,360 are no longer able to communicate. 244 00:17:57,440 --> 00:18:00,040 So, it's very complex, but we came up with an idea. 245 00:18:00,120 --> 00:18:01,440 Let's have mesh networks, like, multi-networks, 246 00:18:01,560 --> 00:18:02,880 and let's use artificial intelligence techniques 247 00:18:02,960 --> 00:18:03,600 to keep changing. 248 00:18:03,680 --> 00:18:06,520 The product we use, the route the information flow has to go 249 00:18:06,600 --> 00:18:08,240 through, the parameters of our communication system. 250 00:18:08,360 --> 00:18:10,360 And we came up with some novel fundamental understanding, 251 00:18:10,400 --> 00:18:11,040 and it works. 252 00:18:11,160 --> 00:18:13,440 What was not possible before is now possible in terms 253 00:18:13,560 --> 00:18:14,880 of performance, transmitting even multimedia information 254 00:18:15,000 --> 00:18:17,080 like images, in terms of real ability of communicating. 255 00:18:17,160 --> 00:18:18,960 And this is a gorgeous application in underwater 256 00:18:19,120 --> 00:18:21,160 cultural heritage, but this is going to change actually 257 00:18:21,280 --> 00:18:23,560 whatever we are able to do in terms of exploring 258 00:18:23,640 --> 00:18:25,200 and understanding these environments across the blue 259 00:18:25,240 --> 00:18:39,360 economy. 260 00:18:39,440 --> 00:18:41,240 Under the water, a whole world opens up. 261 00:18:41,360 --> 00:18:55,440 The sculptures here are replicas. 262 00:18:55,520 --> 00:18:57,840 The real ones are safe above ground in the nearby 263 00:18:57,880 --> 00:19:14,800 archaeological museum. 264 00:19:14,920 --> 00:19:17,000 But the other artefacts, from the walls to mosaics, 265 00:19:17,040 --> 00:19:17,480 are original. 266 00:19:17,600 --> 00:19:20,080 As we swam, statues began to appear out of the water. 267 00:19:20,200 --> 00:19:21,800 This was the nymphaeum of Emperor Claudius, 268 00:19:21,920 --> 00:19:24,160 a place where the first century ruler would have strolled 269 00:19:24,240 --> 00:19:38,200 and admired his sculptures. 270 00:19:38,320 --> 00:19:49,880 I pressed a button on my tablet and held it up. 271 00:19:49,960 --> 00:19:52,000 A 3D version of how the nymphaeum would've looked 272 00:19:52,080 --> 00:20:03,880 appeared on screen. 273 00:20:03,960 --> 00:20:06,520 This is one of the other main goals of MUSAS - 274 00:20:06,600 --> 00:20:08,400 to help divers understand and appreciate the ruins 275 00:20:08,520 --> 00:20:09,200 they're looking at. 276 00:20:09,240 --> 00:20:10,840 But the best was yet to come. 277 00:20:10,920 --> 00:20:13,240 My dive guide, Enzo Maione, stopped on the sea floor 278 00:20:13,320 --> 00:20:16,320 and started to push the sand around. 279 00:20:16,480 --> 00:20:18,960 With each sweep of his hand, more of the mosaic revealed 280 00:20:19,080 --> 00:20:21,200 itself until we were hovering over an intricate pattern 281 00:20:21,240 --> 00:20:34,600 of circles and hexagons. 282 00:20:34,720 --> 00:20:37,520 This was once the floor of a room just off the atrium 283 00:20:37,640 --> 00:20:39,680 of a magnificent villa dating to the second century. 284 00:20:39,760 --> 00:20:41,160 There's nothing quite like seeing ancient 285 00:20:41,200 --> 00:20:41,840 ruins like this. 286 00:20:41,920 --> 00:20:43,960 For one thing, there's the eerie silence of being 287 00:20:44,080 --> 00:20:45,680 underwater - hearing only your own breathing. 288 00:20:45,800 --> 00:20:46,840 For another, there's the intimacy. 289 00:20:46,960 --> 00:20:49,240 Forget the crowds at sites like the Colosseum, down here, 290 00:20:49,360 --> 00:20:51,960 where only scuba divers can go, you can experience this ancient 291 00:20:52,000 --> 00:21:05,520 landscape almost alone. 292 00:21:05,640 --> 00:21:07,480 And knowing that it's being protected for future 293 00:21:07,560 --> 00:21:15,520 generations couldn't be a better feeling. 294 00:21:15,640 --> 00:21:17,400 The team installed the monitoring system at Baiae 295 00:21:17,440 --> 00:21:18,360 permanently in summer 2020. 296 00:21:18,480 --> 00:21:20,040 The project is also being unrolled elsewhere, 297 00:21:20,120 --> 00:21:21,920 including at an ancient underwater site in Puglia. 298 00:21:22,040 --> 00:21:25,080 It's a privilege to see it all in person and to learn how 299 00:21:25,200 --> 00:21:26,760 these innovations could dramatically improve the way 300 00:21:26,840 --> 00:21:28,440 the site is preserved by archaeologists and 301 00:21:28,480 --> 00:21:41,280 experienced by travellers. 24667

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