Great Saltee Island, located 5000 metres from Kilmore Quay, offers a distinct snorkelling experience across kelp forests and rocky reefs. The site features depths ranging from 2 to 8 metres, with an average depth of 5 metres. Access is possible via both shore and boat, though snorkellers should be aware of strong currents, surf, and boat traffic in the area. Given the challenging conditions, this site is best suited for intermediate snorkellers. Water temperatures fluctuate between 9C and 16C throughout the year. Typical sessions last approximately 60 minutes.

Conningbeg Rock, located off Hook Head, is a challenging marine site featuring a combination of reef and wreck topography. Divers can explore depths ranging from 10 to 45 metres, with an average depth of 25 metres. Due to its offshore location, approximately 11 kilometres from the coast, this site requires boat access. Conditions are characterised by strong currents and potential surf, making it suitable for intermediate divers. Facilities including parking, toilets, and showers are available at the departure point, with boat charters required to reach the site. No specific marine life data is available for this location.

Girl Arleen is a wreck dive located off Hook Head, Ireland. The site sits at depths ranging from 26 to 29 metres, with an average depth of 27 metres. Access to the wreck is by boat only, as it lies approximately 4828 metres from the shore. Divers should be prepared for strong currents, which are a notable hazard at this location. Due to the depth and current conditions, this site is suited for intermediate divers. Facilities available for those planning a trip include air fills and guided tours. Water temperatures at the site fluctuate between 9C and 16C throughout the year.

Forlorn Point is a rocky headland located west of the harbour at Kilmore Quay, Ireland. The site features ancient gneiss reefs that are best explored at high tide when the rocky gullies are accessible. Snorkellers can expect depths ranging from 2 to 5 metres, with an average depth of 3 metres. Entry is from the shore, and the site is suited for intermediate snorkellers. Conditions vary, with visibility typically between 5 and 15 metres and moderate currents. Hazards include cold water, sea urchins, surf, and surge. Facilities available nearby include parking, a cafe, and a dive shop.

Pollock Rock at Hook Head is a reef dive site requiring boat access. The site features an average depth of approximately 10 metres, with recorded depths consistently around 9 to 10 metres. Divers should be aware that conditions at this location include strong currents and potential rip currents. Due to these environmental factors, the site is best suited for those comfortable with current-prone waters. Water temperatures in this region fluctuate throughout the year, ranging from 9C in the late winter and early spring to 16C during the late summer months. Facilities available in the area include parking, toilets, showers, and boat charter services.

Three Mile Rock at Hook Head is a challenging marine site featuring a combination of reef, wall, and cave topography. Located approximately 4828 metres from the shore, this site requires boat access and is suited for advanced divers due to strong currents and the presence of overhead environments. Depths range from 3 to 35 metres, with an average depth of 10 metres. Visibility varies significantly, ranging from 7 to 30 metres depending on conditions. Water temperatures fluctuate between 9C and 15C throughout the year. Divers should be prepared for the technical nature of the site, including cave navigation and current management.

Baginbun Beach at Hook Head is a sheltered sandy cove flanked by rocky outcrops. This site is suitable for beginners, offering shore access to a reef environment with depths starting from 2 metres. Conditions are generally mild, though divers should remain aware of potential boat traffic, cold water, entanglement risks, jellyfish, and sea urchins. The water temperature ranges from 9C to 16C throughout the year. The habitat supports a variety of temperate marine life, including reef fish and invertebrates typical of the region. Facilities available at the site include parking, toilets, a cafe, and equipment rental.

Solomon's Hole at Hook Head is a natural limestone sea arch and enclosed pool located south of Slade Harbour. Divers and snorkellers can navigate through the arch into a sheltered gully. The site is a reef environment with an average depth of 10 metres, reaching a maximum of 12 metres. Access is via a shore entry, with the site situated 300 metres from the coast. Conditions vary, with moderate currents and potential surf, making this site suitable for intermediate divers. Water temperatures fluctuate between 9C and 16C throughout the year. Parking is available at the location, and guided tours are offered for those visiting the area.