| Background info/history/introduction | In 1955 the British S Class submarine the Sidon was critically damaged when one of her test peroxide-powered torpedoes exploded rupturing two bulkheads and killing 12 crew members. At the time of the explosion the Sidon was moored in Portland Harbour and she soon sank to the seabed. She was raised a week later and was later patched up so that she could be towed out for use as an ASDIC target. |
| Coordinates | 50 32.96N 02 38.43W |
| Coordinates confirmed on plotter yes/no | No |
| Transit distance by sea | Ferrybridge 14 NM |
| Depth | 27m – 36m |
| Orientation of target | NW – SE |
| Slack (ref nearest appropriate port) | 3 hrs >HW Portland |
| Hazards | Monofilament fishing line. |
| Condition of wreck | Intact and sitting upright on a sand/shingle seabed. |
| Restrictions (war grave etc) | War grave |
| Highlights | There are numerous holes in the outer pressure hull that are home to a variety of marine life. |
| Recommendations | A great submarine dive. |
| Dive charter boats | Sidon | Scimitar Diving Sidon – Skindeep Diving The Sidon wreck – West Bay Charters |
| Divernet wrecktour | |
| Blogs | |
| Other reference sources | Dive Dorset #66 page 61 |
| Videos | |
| Disclaimer: | Please note that Newbury Scuba Diving Club cannot be held responsible for any incorrect data relating to these dive sites. Every diver/dive manager is responsible for checking the accuracy of the data themselves prior to commencing their own diving activity by using appropriate charts, tidal flow information and other approved reference materials. |