Video thumbnail for Two Divers Never Came Back Up | HMS Scylla Tragedy

Two Divers Never Came Back Up | HMS Scylla Tragedy

Jan 25, 2026
On September 3rd, 2021, a routine dive on the HMS Scylla artificial reef turned into one of the UK's most tragic diving incidents. Three experienced divers entered the complex engine room of the wreck. Only one made it back to the surface. In this exclusive interview, sole survivor Adam Dent breaks his silence on the events that claimed the lives of Andrew Harman and Mark Gallant. He details the silt-out, the disorientation, and the critical life-or-death decisions he made in the pitch black of the wreck's interior. This is not just a story of a diving accident; it is a vital lesson in survival, risk management, and the unforgiving nature of overhead environments. ━━━━━━━━━━━━━━━━━━━━━━ *Thanks* Thank you to Bryan Boldt for the Insta360 footage used in this dive ━━━━━━━━━━━━━━━━━━━━━━ *Contents* 00:00 Introduction 03:36 HMS Scylla 05:42 Separation 08:07 The trapdoor 12:24 Fighting my body 14:17 Running out of gas 17:07 The escape 21:13 ALIVE! 24:41 What happened next? 29:47 Reflections and lessons 33:00 Survivors Guilt 36:48 Still diving! ━━━━━━━━━━━━━━━━━━━━━━ *ABOUT THIS CHANNEL* Deep Wreck Diver explores shipwrecks, submarines, and sunken aircraft from around the world - combining technical diving with detailed wreck identification and historical storytelling. Every dive uncovers a piece of history lost to the depths. ━━━━━━━━━━━━━━━━━━━━━━ *Kit I Use* Note, some of these are affiliate links so help support making my videos: 👉 Gloves are Ansell Alphatec 87-063 - https://amzn.to/4jDHhX4 👉 Drysuit is an O-Three Ri2-100 - https://www.othree.co.uk/drysuit-range/ri-2-100-drysuit/ 👉 CCR is an AP Diving Inspiration (XPD) - https://www.apdiving.com/ 👉 Backup computer is a Shearwater Perdix v2 - https://amzn.to/42FXZOW 👉 Reels are by Kent Tooling - https://www.divingproducts.co.uk/ 👉 Phone housing is Divevolk Seatouch 4 Max - https://s.click.aliexpress.com/e/_omJlNKL 👉 Stickers for gear by Dive Signs - https://www.divesigns.com/ ━━━━━━━━━━━━━━━━━━━━━━ *Video Gear* I use the following gear (also affiliate links) 👉 Action Camera is Insta360 Acep Pro 2 - http://bit.ly/4nkMEwA 👉 Helmet mounted cameras are Paralenz Vaquita 👉 Video light is LetonPower Sealion L24 (10% off!) - http://bit.ly/4nFLCva ━━━━━━━━━━━━━━━━━━━━━━ *Strobes* I use two different strobes (also affiliate links) 👉 Prozhaozhu 3000 Lumen Diving Strobe - https://s.click.aliexpress.com/e/_oBMRF3X 👉 Prozhaozhu 4000 Lumen Diving Strobe - https://s.click.aliexpress.com/e/_oCTEses 👉 Jon clip - https://s.click.aliexpress.com/e/_oDqq0RW ━━━━━━━━━━━━━━━━━━━━━━ 📱Follow My Socials! Instagram 👉 https://www.instagram.com/deepwreckdiver/ Facebook 👉 https://www.fb.com/DeepWreckDiver Buy Me A Coffee 👉 https://buymeacoffee.com/d33puk Email 👉 [email protected] #HMSscylla #divingdisaster #wreckdiving #scuba #survivorstory #technicaldiving #scubadiving

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