Sun Beach in Pembrokeshire offers a shallow reef environment suitable for beginners. Divers and snorkellers access the site via a slipway, leading to a rocky seabed. Depths range from 1 to 10 metres, with an average of 5 metres. Conditions are variable, with visibility typically between 3 and 10 metres and mild currents. Water temperatures fluctuate between 8C and 18C throughout the year, necessitating appropriate thermal protection such as full wetsuits, hoods, and gloves. The site is well-supported by local facilities, including parking, toilets, showers, and equipment rental. Divers should remain aware of jellyfish in the water.

Blue Lake in Pembrokeshire is a shore-entry quarry dive offering a controlled environment for recreational diving. The site features an artificial reef structure placed on the quarry floor, providing a focal point for exploration. Divers can expect depths ranging from 6 to 12 metres with visibility typically around 5 metres. The water remains cold throughout the year, necessitating appropriate thermal protection such as a drysuit or thick wetsuit. As the site contains overhead environments, divers should maintain awareness of their surroundings and stay within their certification limits. There is no current at this location, making it a practical site for those developing their skills.

Tywyn is a shore-entry reef dive located in Mid Wales. The site features a reef structure suitable for beginners, with depths ranging from 7 to 14 metres. Divers can expect visibility between 5 and 10 metres and mild currents. Water temperatures fluctuate between 8 and 18 degrees Celsius, necessitating a well-fitted wetsuit or drysuit. Entry requires caution due to a potential shore break, so timing your approach between sets is recommended. Once underwater, be mindful of entanglement hazards and maintain close proximity to your group. Parking and toilets are available on-site, providing convenient access for a day trip.

Borth Submerged Forest in Pembrokeshire offers a unique snorkelling experience featuring a 4,500-year-old petrified forest. Visible at low tide, the site consists of peat reefs and gullies that provide an atmospheric underwater environment. Access is via the shore, and the site is best suited for intermediate snorkellers due to varying coastal conditions. Water temperatures fluctuate between 8C and 18C throughout the year. While no species are confirmed at this exact location, species recorded around this area include barrel jellyfish, rock crabs, sea stars, spiny spider crabs, European green crabs, shanny, and rockpool prawns.

Bath Rocks, situated just south of the Royal Pier in Aberystwyth, provides a shore-accessible snorkeling site within the town. The topography consists of rocky platforms featuring deep gullies and vertical rock faces. These surfaces are covered in seaweed, creating a distinct underwater environment. Water temperatures at this site vary throughout the year, ranging from 8C in the winter months to 18C in August. Due to the nature of the terrain and the sheltered conditions, this site is suitable for beginners. Snorkelers should be prepared for variable conditions typical of the Pembrokeshire coastline.

Criccieth Castle is a shallow shore dive featuring reef structures that provide a navigation challenge for divers. The site typically ranges from 5 to 8 metres in depth, though it extends to 30 metres in some areas. Conditions are characterised by mild currents and variable visibility, which can occasionally be very low. Divers should be prepared for water temperatures between 8C and 18C. Due to the risk of boat traffic, the use of a surface marker buoy is essential throughout the dive. Parking is available at the site, facilitating a straightforward shore entry for those looking to build experience in temperate marine environments.

Trefor Pier is an artificial reef site located in Pembrokeshire, United Kingdom. Divers can explore the structure at depths ranging from 2 to 8 metres, with an average depth of 6 metres. This shore entry site is suitable for beginners and offers mild currents. Visibility typically ranges between 5 and 10 metres. The site is accessible for night diving, with a typical dive duration of 60 minutes. Facilities available at the location include parking, toilets, air fills, and a cafe. Divers should remain aware of potential hazards, including boat traffic, entanglement risks, and surf conditions. Water temperatures fluctuate between 8C and 17C throughout the year.

Porthdinllaen is a sheltered bay in Pembrokeshire, United Kingdom, defined by its extensive seagrass meadows and reef topography. This site is suitable for beginners, offering shallow dives with an average depth of 3 metres and a maximum of 5 metres. Shore entry is standard, with mild currents and visibility ranging from 3 to 10 metres. The habitat supports a variety of temperate marine life, including various reef fish and invertebrates. Divers should be aware of potential hazards such as boat traffic, jellyfish, sea urchins, and surf. Facilities including toilets and a cafe are available nearby. The site is also suitable for snorkelling and night diving.