The City of London is a wreck dive located off the coast of Brighton and Eastbourne, resting at depths between 18 and 23 metres. This shore-accessible site is suited for advanced divers due to moderate currents and the potential for variable visibility. Divers should be prepared for low-light conditions and carry both primary and backup torches. The structure presents a risk of entanglement, making a wreck reel and cutting tool essential equipment. Water temperatures fluctuate between 9C and 18C throughout the year. Divers should consult local operators regarding visibility reports before planning a dive, as conditions can change rapidly.

HMS Keryado is a shipwreck located 16 kilometres offshore, resting at depths between 31 and 38 metres. This advanced dive site requires careful planning due to moderate currents and potential for low visibility, which can range from 1 to 20 metres. Divers must manage decompression requirements and the risk of nitrogen narcosis at these depths. Water temperatures fluctuate between 9 and 18 degrees Celsius, making a drysuit recommended for most of the year. Access is strictly by boat charter. Divers should coordinate with their skipper to time the descent with slack water and must deploy a surface marker buoy before ascending to mitigate risks from boat traffic and current drift.

The City of Waterford is a wreck dive located 12.8 kilometres off the coast of Brighton and Eastbourne. Resting at depths between 30 and 36 metres, this site is strictly for advanced divers. The wreck presents significant entanglement risks, requiring precise buoyancy control and awareness of the overhead structure. Strong currents are common, making slack water essential for a successful dive. Visibility is highly variable and can drop to one metre, so divers must monitor their position closely. Boat access is required to reach the site, and thermal protection is necessary to manage water temperatures ranging from 9C to 18C throughout the year.

HMS Ariadne is a wreck and artificial reef located off the South Coast of England. The site lies at depths between 14 and 30 metres, with an average depth of 20 metres. Access is by boat only, approximately 8 kilometres from the shore. Divers encounter mild currents and visibility ranging from 5 to 15 metres. The wreck features overhead sections and potential entanglement hazards, requiring intermediate skill levels and careful buoyancy control. The structure supports a variety of temperate marine life and invertebrates typical of the region. Guided tours are available and recommended for those unfamiliar with the wreck layout to assist with navigation.

The Oceana is a wreck site located 4000 metres offshore, functioning as an artificial reef. Divers can explore the structure at depths ranging from 10 to 30 metres, with an average depth of 25 metres. Access is by boat only, and the site is suited for intermediate divers due to moderate currents and potential entanglement hazards. Visibility typically ranges between 5 and 15 metres. Water temperatures fluctuate from 9C in winter to 18C in late summer, necessitating a drysuit or thick wetsuit. Divers should plan their visit around slack water and carry a surface marker buoy for boat recovery.

The Alaunia is a wreck site located off Selsey, United Kingdom. Divers encounter an overhead environment that requires strict buoyancy control to prevent silt disturbance, which can reduce visibility to one metre. The site reaches a depth of thirty-two metres, necessitating careful monitoring of depth gauges. Entanglement risks are present, and divers should carry line cutters. Water temperatures fluctuate between 9 and 18 degrees Celsius, requiring appropriate exposure protection. As this is an open-water marine environment, divers may encounter various temperate reef fish and invertebrates typical of the South Coast of England. Divers should arrive self-sufficient as facilities are not confirmed at this location.

Barn Hill is a shore-entry reef site located on the South Coast of England. The site features shallow water, providing a suitable environment for newly certified divers to practice skills. Visibility is variable, reflecting typical conditions for inshore reef sites in this region. Water temperatures range from 9 to 18 degrees Celsius throughout the year, necessitating a thick wetsuit or drysuit, particularly during winter months. Divers should exercise caution regarding the surf and shore break during entry and be mindful of jellyfish in the water column. Avoid contact with sharp rocks on the seabed. Check local conditions and facility availability before planning a dive.

The Clan Macmillan is a technical wreck dive located off the coast of Brighton and Eastbourne. Resting at depths between 50 and 65 metres, this site is strictly for experienced divers with trimix certification. The wreck is subject to strong currents, making precise timing with slack water essential for a safe dive. Visibility typically ranges from 3 to 10 metres, and the environment presents significant hazards including entanglement risks and cold water temperatures between 9 and 18 degrees Celsius. Divers should be self-sufficient, as facilities at the shore entry point are not confirmed. A drysuit is recommended for the duration of the 30-minute typical dive.