Porthgain Harbour Gullies, located within the Skomer Marine Reserve, offers a shallow reef environment suitable for beginners. Divers and snorkellers access the site via the harbour slipway, leading to a series of rocky gullies situated just outside the harbour mouth. The site features depths ranging from 3 to 8 metres, with an average depth of 5 metres. Conditions include moderate currents and potential boat traffic, requiring awareness during the typical 40-minute dive. Water temperatures fluctuate between 9C and 16C throughout the year. Facilities available at the harbour include parking, toilets, and a cafe.

The Behar is a wreck dive located 4000 metres offshore within the Skomer Marine Reserve. Resting at depths between 15 and 19 metres, with an average depth of 17 metres, the site is accessible only by boat. Divers can expect mild currents and visibility ranging from 5 to 10 metres. Due to water temperatures fluctuating between 9 and 16 degrees Celsius, a drysuit or a minimum 7mm wetsuit is recommended. The wreck offers a hard structure to explore, though divers should remain vigilant regarding entanglement hazards. Always maintain close contact with boat support and ensure a line cutter or dive knife is readily accessible during the dive.

Stack Rocks is a reef dive site located 500 metres from the shore within the Skomer Marine Reserve. The site offers depths ranging from 5 to 25 metres and is suitable for beginners, though conditions vary. Access is by boat only. Divers should be aware of potential hazards including boat traffic, sea urchins, strong currents, and surf. Water temperatures fluctuate throughout the year, ranging from 9C in the winter months to 17C in September. As a marine reef environment, the site provides a varied underwater topography for exploration.

Hen Chicks is a reef dive located within the Skomer Marine Reserve, offering depths between 8 and 16 metres. The site is characterised by mild currents, making it suitable for beginner divers. Visibility is generally good, ranging from 10 to 30 metres. Divers access the site by boat. Water temperatures fluctuate between 9 and 17 degrees Celsius throughout the year, requiring appropriate exposure protection. When diving, maintain careful buoyancy to avoid contact with the seabed and potential entanglement risks associated with the reef structure. Protective gear is recommended to prevent injury from sharp surfaces.

High Point North is a shore-accessible reef and wall site located within the Skomer Marine Reserve. Divers typically explore depths between 15 and 18 metres, with an average depth of 15 metres. The site features a reef structure that drops away, requiring careful monitoring of the depth profile. Visibility generally ranges from 5 to 10 metres. Marine life observed at the site includes common wrasses, cod, spiny spider crabs, and European green crabs, alongside less frequent sightings of catsharks, compass jellyfish, and orange-clubbed nudibranchs. Due to boat traffic, divers must deploy a surface marker buoy before ascending. Shore entry and exit may involve a surf break.

St Brides Bay, located within the Skomer Marine Reserve, is a sheltered reef site characterised by red sandstone geology. The seabed features rocky reefs and kelp forests, providing a varied environment for both divers and snorkellers. Depths range from 10 to 30 metres, with an average depth of 12 metres. Conditions are generally mild, with visibility typically between 5 and 15 metres. Access is available via both shore and boat entries, making this a suitable location for beginners. Water temperatures fluctuate throughout the year, ranging from 9C in late winter to 17C in September.

West Hook is a shore-entry dive site located within the Skomer Marine Reserve. The site features a reef and kelp forest environment with an average depth of 9 metres. Divers can expect mild currents and visibility ranging from 5 to 15 metres. Typical dive times are approximately 45 minutes, and the site is suitable for beginners. Night diving is also permitted at this location. Water temperatures fluctuate between 9C and 17C throughout the year. Divers should remain aware of potential hazards, including boat traffic, entanglement risks, and surf conditions near the shore.

Highpoint is a marine dive site located within the Skomer Marine Reserve in the United Kingdom. The site features a consistent depth of 9 metres. Water temperatures at this location vary throughout the year, ranging from a minimum of 9C in February and March to a maximum of 17C during August and September. As a marine environment, the site is subject to variable conditions typical of the region. It is suitable for divers looking for a shallow, consistent depth profile within the reserve. Access to this site is typically managed via boat from nearby coastal points.