Twin Peaks is a boat-access reef located off the southwest coast of Ireland near Brandon Creek. The site is defined by its twin peak formations, which provide a distinct structure for navigation. Divers typically encounter depths of 25 metres, though the seabed can reach 50 metres, requiring careful depth monitoring. Conditions feature mild currents and visibility ranging from 10 to 30 metres. Given the water temperatures of 10 to 15 degrees Celsius, adequate thermal protection is necessary. This site is suited for intermediate divers. Always remain alert for boat traffic near the surface and check local reports for visibility updates before departure.

Brandon Creek is a narrow, historic inlet situated at the foot of Mount Brandon on the southwest coast of Ireland. This rocky reef site features high cliffs that provide shelter for the area. Divers and snorkellers can explore depths reaching 18 metres, located approximately 50 metres from the shore. The site is accessed via a shore entry and is best suited for intermediate divers due to moderate currents and potential for strong current hazards. Visibility varies between 5 and 20 metres. Water temperatures range from 10C to 16C, necessitating appropriate thermal protection. The habitat supports a variety of temperate marine life, including reef fish and invertebrates.

Sick Man's Rock is a reef site located off the coast of Brandon Creek, Ireland. The topography features a significant drop-off, with depths ranging from 18 to 50 metres and an average depth of 25 metres. Visibility at the site typically spans 10 to 30 metres. While currents are generally mild, strong currents are a known hazard, making this site suitable for intermediate divers. Due to water temperatures between 9 and 15 degrees Celsius, a drysuit or thick wetsuit is required. Access is exclusively by boat, and divers should be self-sufficient with all equipment upon arrival. The reef supports a variety of Atlantic marine life and invertebrates.

The Tunnel is a cave and reef site located off Brandon Creek, Ireland. Divers explore a passage and open reef terrain at depths ranging from 12 to 24 metres, with an average depth of 18 metres. Visibility varies between 10 and 30 metres. Access is by boat only, and the site is suited for intermediate divers. Water temperatures fluctuate between 9C and 15C, necessitating the use of a drysuit or a 7mm wetsuit. While currents are typically mild, they can strengthen, requiring careful monitoring of local forecasts and slack water timing. The site features temperate Atlantic reef life throughout the structure.

Inishnabro is an exposed Atlantic site off the coast of Ireland, featuring a combination of reef and wall topography. Divers can expect depths ranging from 18 to 30 metres, with an average depth of 24 metres. The site is suited for intermediate divers due to moderate currents that can strengthen quickly; planning for slack water is essential. Visibility typically ranges from 10 to 30 metres. Water temperatures are cold, fluctuating between 10 and 15 degrees Celsius throughout the year. The site is accessible only by boat, and entry is subject to surf conditions. The habitat supports various temperate reef fish and invertebrates.

Minard Castle, located at Kells Bay, is a distinctive storm beach characterised by large rounded boulders and Atlantic waters. The site is situated directly beneath the ruins of a 16th-century castle. Snorkellers can explore the rocky gullies found to the right of the slipway. This shore-entry site is suitable for beginners and offers a snorkel rating of 4 out of 5. Water temperatures at this location vary throughout the year, ranging from 10C in the winter months to 16C during the peak of summer in August and September.

The Outer Reef in Dingle Bay is a rugged, advanced-level site featuring a combination of reef, wall, and drift diving. Divers navigate depths between 24 and 35 metres, encountering ledges and crevices. The site is subject to strong currents, surge, and potential down currents, requiring boat access. Visibility typically ranges from 10 to 25 metres, and water temperatures fluctuate between 9C and 15C throughout the year. Due to the depth, cold water, and challenging current conditions, this site is strictly for experienced divers. Surface conditions may include surf, and careful planning is required for all dives.

The Letterbox is a wall and reef site located in Dingle Bay Reefs, Ireland. Divers explore a depth range of 10 to 18 metres, with an average depth of 15 metres. Access is by boat only, and the site is suited to intermediate divers comfortable with mild currents and potential surge. Visibility varies between 10 and 30 metres. Water temperatures range from 9C to 15C, making a drysuit recommended for the 45-minute typical dive duration. The habitat supports a variety of temperate marine life, including reef fish and invertebrates typical of the southwest coast. Always monitor Atlantic swell conditions, as they can significantly affect the comfort of the dive.