Trá Mhantán, also known as Puppy's Cove, is a sheltered reef site located at the far end of Dog's Bay in County Clare. This small cove offers a peaceful snorkelling experience with depths ranging from 2 to 8 metres, averaging 5 metres. The site is accessible via a shore entry and is suitable for beginners. Conditions are variable, with visibility typically between 5 and 15 metres and mild currents. Water temperatures are cool, fluctuating between 9C and 16C throughout the year. Due to the risk of cold water shock, a wetsuit is strongly recommended for all visitors. Parking is available near the site.

Dog's Bay in County Clare is a distinctive horseshoe-shaped bay featuring a unique white sand seabed composed of crushed seashells known as foraminifera. This sheltered reef site offers a calm environment protected from the prevailing Atlantic swell, making it a suitable location for beginner snorkellers. Access is via the shore, with parking facilities available nearby. Water temperatures are cool, ranging from 9C to 16C throughout the year, and wetsuits are recommended for extended sessions. While the bay is well-sheltered, snorkellers should remain aware of the deep water areas within the bay. Typical sessions last around 60 minutes.

Mweemore is a reef dive site located in Ireland. The site features an average depth of 17 metres. Access to the reef requires a boat, though entry can be managed via both boat and shore depending on specific conditions. Divers should be prepared for moderate currents and cold water temperatures, which range from 9C in February to 16C in August and September. Due to the environmental conditions and current, this site is best suited for intermediate divers. There is no specific marine life data available for this location.

Spotted Rock is a marine reef and wall site located in Ireland, accessible only by boat. The site features depths ranging from 10 to 40 metres, with an average depth of 25 metres. Divers should be prepared for mild currents, though strong currents can occur. Visibility typically ranges between 10 and 20 metres. Water temperatures fluctuate between 9C and 15C throughout the year. This site is suited for intermediate divers, with typical dive times around 45 minutes. Night diving is permitted at this location. Boat charter services and air fills are available for those planning a visit.

Dumhnach Beach on Inishbofin Island offers a shore-entry snorkelling experience across reef and seagrass habitats. The site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Visibility typically spans 10 to 20 metres. Due to the nature of the location, divers and snorkellers should be aware of strong currents, rip currents, and surf conditions. Water temperatures remain cold throughout the year, fluctuating between 9C and 16C, so short durations are recommended unless you are experienced in cold water. Facilities at the site include showers and a local dive shop.

Doonagheena is a marine dive site located in Ireland. The site features a consistent depth of approximately 11 metres. Conditions at this location vary, with water temperatures ranging from 9C in the winter months to 16C during late summer. Given the depth and environmental conditions, this site is suitable for divers with appropriate training for temperate marine environments. Access to the site is typically via boat, though local conditions should be assessed prior to entry. As there is no specific data regarding marine life at this location, divers should expect typical temperate marine habitats.

Glassilaun Beach, situated near the mouth of Killary Fjord, offers shore access to rocky outcrops and kelp forests. The site is suitable for beginners, with depths ranging from 1 to 18 metres and an average depth of 5 metres. Visibility varies between 3 and 15 metres, and currents are generally mild. Water temperatures are cold, ranging from 9C to 16C throughout the year. Species recorded around this area include common lobster, compass jellyfish, flatworms, catsharks, squat lobsters, cod, common sea stars, grey sea slugs, zoanthids, brittle stars, tube worms, crabs, and common moon jellyfish. Hazards include cold water and jellyfish. Facilities include parking, toilets, showers, rinse stations, guided tours, and equipment rental.

The Barge is a wreck dive site located in Ireland. The site is shallow, with an average depth of 6 metres. Divers should be aware that conditions at this location can vary, and strong currents are a known hazard. Due to the presence of these currents, the site is best suited for intermediate divers. Water temperatures at the site fluctuate throughout the year, ranging from 9C in the winter months to 16C during the late summer and early autumn. As a wreck site, it offers a specific underwater topography for those interested in maritime history.