Port Logan Fish Pond is a unique tidal pool located within a sheltered bay in Strangford Lough. Snorkellers can explore the surrounding bay, which features a mix of sand and rock topography. The site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Entry is via the shore, and conditions typically involve mild currents. Water temperatures are cool, averaging 8°C, which requires appropriate thermal protection. Hazards include cold water and surf. Facilities available at the site include parking, toilets, and guided tours. The habitat supports a variety of temperate marine life, including reef fish and invertebrates.

Port Mora in Strangford Lough offers a diverse underwater environment featuring reefs, caves, and caverns. This site is suitable for intermediate divers and snorkellers, with shore access available. The topography includes underwater caves accessible at low tide. Conditions vary, with water temperatures ranging from 8C to 15C throughout the year and mild currents present. Divers should be aware of hazards including cold water, potential entanglement, the overhead environment of the caves, and the risk of strong currents. The habitat supports a variety of temperate marine life, including various reef fish and invertebrates typical of the region.

Skullmartin Rocks is an offshore reef located 1609 metres from the shore in Strangford Lough. The site is identified by an 11-metre beacon known as the Perch. Topography consists of dramatic bedrock outcrops interspersed with shell gravel beds. Due to the location, this site requires boat access and is suitable for advanced divers only. Conditions are characterised by strong currents, which are a primary hazard for those visiting the area. Water temperatures fluctuate between 8C and 15C throughout the year. While the site is primarily a dive location, it holds a snorkel rating of 4 out of 5.

Dully Beach in Strangford Lough features a natural offshore reef that shelters the shoreline from Irish Sea swells. This reef creates a protected, shallow environment suitable for snorkeling at depths between 0 and 10 metres. Access is via a shore entry, and the site is generally suited for beginners. Conditions are characterised by mild currents, though snorkelers should be aware of potential hazards including surf, rip currents, and entanglement. Water temperatures are cool, ranging from 8C to 15C throughout the year, requiring appropriate thermal protection for those spending time in the water. Parking and toilets are available at the site.

Ballywalter Harbour Bay is a sheltered site located immediately south of the working harbour jetty in Strangford Lough. The topography consists of a mix of reef, artificial reef, and wall structures. This shore-entry site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Divers and snorkellers can expect mild currents and visibility between 3 and 8 metres. Water temperatures fluctuate between 8C and 15C throughout the year. Facilities available at the site include parking, toilets, and a cafe. Hazards to be aware of include surf and currents.

Lime Kilns is a shore-entry dive site located in Strangford Lough, situated directly below the historic 19th-century lime kilns at the northern end of Long Sands. The underwater topography consists of a rocky substrate interspersed with kelp forest patches, providing structural diversity compared to the surrounding sandy areas. Divers can expect depths ranging from 1 to 10 metres, with an average depth of 5 metres. Conditions are variable, with visibility typically between 3 and 10 metres and mild currents. The site is suitable for intermediate divers and offers a moderate experience for snorkellers.

Long Sands Rock Pools in Strangford Lough feature significant rocky outcrops along the southern stretch of the beach. These formations create deep pools accessible at mid-to-low tide, providing a sheltered environment suitable for beginner snorkelers. The site functions as a natural aquarium for observing intertidal life in shallow water. Water temperatures at this marine site fluctuate between 8C and 15C throughout the year. Species recorded around this area include harbour seals, grey seals, curled octopus, catsharks, squat lobsters, common lobsters, gurnards, sea slugs, wrasses, compass jellyfish, grey triggerfish, orange-clubbed nudibranchs, skates, and giant jellyfish.

Robbie's Point is a rocky reef located at the southern end of the coastal park in Donaghadee, Strangford Lough. This shore-entry site features a series of gullies and rock pools suitable for shallow-water exploration. Divers and snorkellers can expect depths ranging from 1 to 10 metres, with an average depth of 5 metres. Conditions at this site are variable, with visibility typically between 3 and 10 metres and moderate currents. Due to the presence of surf and currents, this site is best suited for intermediate-level divers. A typical dive duration is approximately 30 minutes. Water temperatures fluctuate throughout the year, ranging from 8C in March to 15C in August and September.