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.

Clodmoor is a wreck dive located 6300 metres off the coast of Brighton and Eastbourne. The site sits at depths between 27 and 31 metres, with an average depth of 29 metres. Due to the depth and potential for variable currents, this site is suitable for advanced divers only. Visibility typically ranges from 5 to 10 metres. Divers must manage decompression requirements and remain aware of entanglement risks posed by the wreck structure. A boat charter is required to reach the site. Water temperatures fluctuate between 9C and 18C throughout the year. Divers should carry a cutting tool and torch, and confirm slack water windows with their skipper before planning the dive.

HMT Ocean Sunlight is a wreck dive located off the coast of Brighton and Eastbourne. This site is suitable for intermediate divers, requiring boat access and careful planning around slack water to manage moderate currents. Conditions at the wreck are variable, and divers should be prepared for cold water temperatures ranging from 9 to 18 degrees Celsius. A drysuit or thick wetsuit is recommended. The structure of the wreck presents potential entanglement hazards, necessitating strong buoyancy control and situational awareness throughout the dive. As conditions can change rapidly, checking current tables before departure is essential for a safe experience.

Newhaven West Arm is an artificial reef site located 100 metres from the shore in Brighton and Eastbourne. The site features a depth range of 4 to 9 metres, with an average depth of 7 metres. Divers can access the site from both the shore and by boat. Conditions include moderate currents and visibility ranging from 2 to 5 metres. Water temperatures fluctuate between 9C and 18C throughout the year. The site is suitable for beginners and supports night diving, with a typical dive duration of 50 minutes. Hazards to consider include boat traffic, entanglement risks, and surf. Local facilities include parking, air fills, and a dive shop.

Saltdean Undercliff features a combination of natural reef and artificial reef structures. The site is characterised by rock groynes that form small, sheltered pockets along the coastline. Divers should expect variable conditions, as chalk suspension often results in low visibility. Water temperatures fluctuate between 9C and 18C throughout the year. This shore entry site is suitable for beginners, though divers must remain aware of potential hazards including cold water, rip currents, and surf. Facilities available at the location include parking, toilets, showers, and a cafe. Snorkelling is possible, though the site is rated 2/5 for this activity.

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.

The T R Thompson is a shipwreck dive site located off the coast of Brighton and Eastbourne. This site is suitable for intermediate divers and requires boat access, as it lies approximately 19 kilometres from the shore. Divers can expect depths ranging from 14 to 30 metres, with an average depth of 25 metres. Conditions at the site are variable, with moderate currents, potential for low visibility, and risks of entanglement. Marine life recorded at the site includes snails, which are very common. Water temperatures fluctuate throughout the year, ranging from 9C in the winter months to 18C during late summer.

Birling Gap is a shore-entry reef site located at the foot of the Seven Sisters cliffs. The topography is defined by unusual chalk platforms and gullies. This site is suitable for beginners, with depths ranging from 0 to 5 metres and an average depth of 2 metres. Conditions are generally mild, though divers and snorkellers should be aware of surf. Water temperatures fluctuate between 9C and 18C throughout the year, with swimming seasons typically reaching 13C to 15C. Facilities available at the site include parking, toilets, and a cafe. The area is best explored during calm weather spells.