3 Mile Rock at Hook Head, Ireland, is an advanced dive site featuring a complex topography of reefs, walls, and caves. Located 1800 metres offshore, this site requires boat access and is subject to strong currents. Divers can explore depths ranging from 15 to 35 metres, with an average depth of 25 metres. Visibility at the site varies between 3 and 15 metres. The environment supports a variety of temperate marine life typical of the region, including various reef fish and invertebrates. Due to the presence of overhead environments and strong currents, this site is suitable only for experienced divers.

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.

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.

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.

The Bathtub is a natural rock pool situated just west of the Hook Head Lighthouse in Ireland. This site features a sheltered pool environment that transitions into a series of deep gullies. Suitable for beginners, the site offers shore access and is rated highly for snorkelling. Depths typically range from 1 to 8 metres, with an average of 4 metres. Conditions vary, with visibility ranging between 4 and 10 metres and moderate currents present. Hazards at this location include deep water, potential entanglement, and surf. Facilities available nearby include parking and a cafe.

Hook Head in Wexford, Ireland, offers a diverse underwater environment featuring reefs, wrecks, caves, and caverns. Divers can explore depths ranging from 4 to 40 metres, with an average depth of 10 metres. Shore entries are standard, though divers should be prepared for strong currents, surf, and variable visibility between 5 and 15 metres. Given the presence of overhead environments and deep sections, this site requires careful planning. Water temperatures fluctuate between 9C and 14C throughout the year. Facilities at the site include parking, a cafe, guided tours, and air fills. Night diving is permitted, with typical dive times lasting around 50 minutes.

Hook Head Blow Holes is a marine site featuring a reef and cave system. Located in Ireland, this site is suitable for intermediate divers and snorkellers. The average depth is 5 metres. Access is via the shore, though conditions can be challenging due to strong currents and surf. The site includes an overhead environment, requiring appropriate training and caution. Water temperatures fluctuate between 9C and 16C throughout the year. Facilities available nearby include parking, a cafe, air fills, and a dive shop. Night diving is permitted at this location.

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.