Red Bay Shore in Strangford Lough offers a varied underwater landscape featuring a kelp-covered boulder wall that transitions into a sandy seabed. This site is suitable for beginners, with depths ranging from 3 to 10 metres and an average depth of 5 metres. Access is via old concrete steps located on the Garron Road, with parking available nearby. Divers should be aware of cold water temperatures, which fluctuate between 8C and 14C throughout the year, as well as potential rip currents and surf conditions. The site is also suitable for snorkelling, holding a rating of 3 out of 5.

Ringfad, also known as Tommy's Port, is a rocky inlet within Strangford Lough that features a combination of reef topography and dense kelp forests. This shore-entry site is suited for intermediate divers, with typical dives lasting around 45 minutes. Conditions are characterised by mild currents and water temperatures ranging from 8C to 14C throughout the year. Divers should be aware of sharp coral present in the area. Parking is available for visitors, and the site is also suitable for snorkelling, holding a rating of 3 out of 5.

Cushendall Gullies in Strangford Lough features a series of rocky gullies reaching depths of approximately 6 metres. This shore-entry site is best explored by following the rocky shoreline north from the entry point. Snorkellers can observe a variety of marine life, including snails, which are very common, particularly in August. Other species recorded at the site include European green crabs, rock crabs, brittle stars, sea stars, shannies, and rockpool prawns. Water temperatures at this location vary between 8C and 14C throughout the year. Due to the nature of the terrain, this site is suited for intermediate-level snorkellers.

Cushendall Boat Park offers a sheltered shore entry point situated near the local RNLI station and sailing club. This site is suitable for beginners, providing access to rocky edges and kelp fringes that extend towards Gilbert Rock. Water temperatures at this marine location fluctuate between 8C and 14C throughout the year. Snorkelers may encounter various marine life, including snails, which are very common, particularly in August. Other species recorded at the site include European green crabs, rock crabs, brittle stars, sea stars, rockpool prawns, and shannies. The site provides a manageable environment for those developing their snorkelling skills in a coastal setting.

Carnlough Harbour, known for the Braavos Steps, offers a sheltered shore entry into the harbour waters. The site features a mix of reef and artificial reef structures, with inner harbour walls covered in kelp forests. This shallow location is suitable for beginners, with an average depth of two metres. Snorkellers should remain aware of boat traffic within the harbour area. Facilities available at the site include parking, toilets, showers, changing rooms, and a cafe. A typical snorkel session lasts approximately 30 minutes, with water temperatures ranging from 8C to 14C throughout the year.

Dalriada Pier in Strangford Lough offers a sheltered snorkel experience suitable for beginners. The site features accessible rocky gullies and a rare seagrass bed, providing a diverse environment for observation. Entry is straightforward, with a gentle access point located beneath the pier slipway. Water temperatures at this location range from 8C to 14C throughout the year. Species recorded around this area include wrasses, catsharks, rock crabs, brittle stars, sea stars, tube worms, snails, European green crabs, rockpool prawns, shannies, and sea squirts. The site is protected from prevailing winds, making it a reliable location for those looking to explore the local marine habitat.

Carnlough Bay is a reef site located in Northern Ireland, offering shore access via a concrete slope equipped with a handrail. The topography consists primarily of a sandy beach, with rocky patches situated at the northern and southern ends of the bay. Conditions are generally mild, with water temperatures ranging between 8C and 14C throughout the year. The site is suitable for beginners and provides facilities including parking, a cafe, toilets, showers, and changing rooms. Due to the water temperature, which does not exceed 20C, the site is not considered suitable for comfortable swimming year-round.

Glenarm Marina offers a sheltered snorkelling experience suitable for beginners. Access is via the slipway located in front of the boathouse. The site features a mix of artificial and natural reef structures with depths ranging from 1 to 5 metres, averaging 3 metres. Snorkellers must remain close to the shoreline to avoid the active boating channel. Water temperatures fluctuate between 8C and 14C throughout the year. Species recorded around this area include wrasses, catsharks, brittle stars, rock crabs, sea stars, shrimp, tube worms, snails, European green crabs, rockpool prawns, shannies, and sea squirts. Facilities including parking, toilets, and showers are available on-site.