The Alastor is an almost intact yacht resting upright on the seabed in the middle of Ringhaddy sounds. Located 90 metres from the shore, the wreck is accessible via a shore entry from the end of the pier at Ringhaddy, where a rope leads to the site. The wreck features open sections that are accessible to divers. Depths at the site range from 20 to 25 metres, with an average of 23 metres. Conditions include moderate currents and visibility ranging from 2 to 10 metres. Due to the depth and variable visibility, this site is suitable for beginners who are comfortable with these specific environmental conditions.

M.Y. Alastor is a wreck site located in Strangford Lough, United Kingdom. The wreck lies at depths ranging from 13m to 23m, with an average depth of 20m. Access is via a shore entry from the small beach area alongside Ringhaddy Quay, situated approximately 80m from the site. Due to strong currents and variable visibility between 1m and 10m, this site is suited for intermediate level divers and snorkellers. Snorkellers may follow a guide cable in shallower sections between 5m and 10m to explore the structure. Water temperatures fluctuate throughout the year, ranging from 9C in late winter to 15C in late summer.

Inner Lees is a shallow marine dive site located within Strangford Lough in the United Kingdom. The site features a consistent depth range of approximately 5 to 6 metres. Conditions at this location vary, with water temperatures ranging from 9C in the late winter and early spring to 15C during the late summer months. Given the shallow nature of the site, it is suitable for divers seeking a relaxed, low-depth experience. Access to the site is typically via boat, though local conditions should be assessed prior to entry.

Ballyhenry Island in Strangford Lough is a small tidal island that provides a shallow snorkeling environment along its boulder-strewn shore. Accessible from the shore, the site is suitable for beginners looking to explore the coastal topography. Water temperatures at this location vary throughout the year, ranging from 9C in the late winter and early spring to 15C during the late summer months. The site is also noted for its rock pooling opportunities at low tide. Due to the tidal nature of the island, visitors should plan their entry and exit times carefully according to the local tide tables.

Inner Lees in Strangford Lough features the remains of a WWII blockship. The bow section of the vessel is a distinct feature that breaks the surface at low tide, making it a shallow site suitable for snorkelers. Access is straightforward from the adjacent shingle beach. Water temperatures at this site vary throughout the year, ranging from 9C in the late winter and early spring to 15C in the late summer and early autumn. Due to its shallow nature and ease of entry, the site is well-suited for beginners looking to explore maritime history in a sheltered marine environment.

Chapel Island Tidal Pool is a deep natural formation situated between Chapel Island and the mainland in Strangford Lough. The site maintains significant depth even during low tide, creating a contained environment for snorkelling. Access is possible via boat or by walking across the seabed during low tide, though the site is best suited for intermediate snorkellers due to the tidal nature of the area. Water temperatures fluctuate between 9C and 15C throughout the year. As a tidal pool, conditions can vary, and visitors should plan their entry and exit according to local tide tables to ensure safe navigation of the surrounding area.

Ballyhenry Bay in Strangford Lough is a sheltered site featuring a well-established Zostera marina seagrass bed. This habitat serves as a nursery for juvenile fish and provides an environment for observing smaller marine life. The site is suitable for beginners and offers shore access for snorkelling. Water temperatures in the bay range from 9C in the late winter and early spring to 15C during the late summer months. As a sheltered location, it provides a manageable environment for those looking to explore the local seagrass ecosystem.

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.