Langland Bay features rocky reefs at both ends of the beach, including the eastern reef known as Crab Island. This shore-entry site is suitable for beginners, though conditions vary with moderate currents and surf. Water temperatures range from 8C to 18C throughout the year. Snorkellers should be aware of potential rip currents and sharp rock formations in the area. Facilities at the bay include parking, toilets, showers, changing rooms, a cafe, and a local dive shop. Species recorded around this area include gray seals, catsharks, skates, rock crabs, common sea stars, brittle stars, snails, European green crabs, shannies, and rockpool prawns.

Bracelet Bay on the Dorset Coast offers a rocky shoreline environment ideal for beginner snorkelers. The site is characterised by limestone ledges and extensive rock pools that provide a habitat for a high density of intertidal species in very shallow water. Access to the water is via the shore. Water temperatures at this location vary throughout the year, ranging from 8C in the winter months to 18C during the peak of summer. Given the shallow nature of the terrain and the rocky topography, this site is best suited for those looking to explore intertidal life in a sheltered coastal setting.

Telpyn Point is a remote headland featuring smooth wave-cut rock platforms and sandstone reefs. This marine site offers both reef and cave topography suitable for intermediate divers. Access is via the shore, though divers should be prepared for moderate currents and potential surf conditions. Water temperatures fluctuate between 9C and 17C throughout the year. The habitat supports a variety of temperate marine life, including various reef fish and invertebrates typical of the region. Snorkellers can also explore the area, which provides a tranquil environment away from crowds. Parking is available nearby for those visiting the site.

Lydstep Haven is a coastal site in the United Kingdom featuring limestone cliffs, shallow rocky reefs, and numerous caves. Snorkellers can explore the rocky reefs at the northern end of the bay, particularly during low tide. The site reaches depths of 1 to 10 metres, with an average depth of 5 metres. Access is via the shore. Conditions vary, with potential hazards including cold water, low visibility, surf, strong currents, and overhead environments within the caves. Water temperatures fluctuate between 9C and 17C throughout the year, necessitating the use of a wetsuit for comfort and safety.

Church Doors is a coastal site in Milford Haven and Dale defined by its limestone arch and dramatic underwater topography. The site features vertical rock faces, small caves, and caverns that provide a complex environment for exploration. Snorkellers can expect to encounter a variety of temperate marine life typical of the region, including various reef fish and invertebrates inhabiting the sponges and anemones on the rock walls. Access is via the shore, and the site is suited for intermediate snorkellers due to moderate currents, potential surf, and the presence of overhead environments. Water temperatures range from 9C to 17C throughout the year, requiring appropriate thermal protection.

Stackpole Quay is a sheltered inlet in Milford Haven and Dale, offering a diverse marine environment for snorkelers. The site features a mix of reef, wall, and kelp forest topography, with depths ranging from 1 to 12 metres and an average of 7 metres. Snorkelers can observe catsharks, which are very common, alongside spiny spider crabs, cod, and various snail species. Barrel jellyfish and common moon jellyfish are occasionally encountered. With mild currents and visibility typically between 5 and 10 metres, this shore-entry site is well-suited for beginners. Water temperatures fluctuate seasonally, ranging from 9C in late winter to 17C during the summer months.

The MV Robert is a wreck site located 1609 metres off the coast of Lundy Island, United Kingdom. This artificial reef sits at depths ranging from 10 to 30 metres, with an average depth of 22 metres. Access to the site is by boat only. Divers should be prepared for strong currents and potential entanglement hazards associated with the wreck structure. Visibility at the site typically ranges between 10 and 20 metres, with water temperatures fluctuating from 9C in late winter to 16C in early autumn. Guided tours, air fills, equipment rental, and gear storage facilities are available for those planning a visit to this intermediate-level dive site.

Gannet's Bay is a reef dive site located at Lundy Island, offering depths ranging from 1 to 30 metres. This site is accessible only by boat and is suitable for divers of all skill levels. Conditions are generally mild, with visibility fluctuating between 5 and 30 metres. Water temperatures vary throughout the year, ranging from 9C in the late winter and early spring to 16C in the autumn. Divers should remain aware of boat traffic in the area and prepare for cold water temperatures. The site provides a varied underwater topography typical of the region, suitable for those seeking a range of depths.