Port Na Ling in Mulroy Bay offers a rugged, natural setting for snorkelling, characterised by extensive rock pools and gullies. This shore-entry site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 2 metres. Conditions vary, with visibility typically between 5 and 15 metres and mild currents. Water temperatures are cold, ranging from 9C to 15C throughout the year, necessitating a wetsuit for comfort. Hazards include potential entanglement, variable visibility, and surf. Parking is available for visitors. The site provides a quiet environment for exploring the local topography.

Portnablagh in Mulroy Bay offers a shore-entry dive featuring a kelp forest, reef structures, and a cave. Suitable for beginners, the site ranges from 2 to 12 metres in depth with an average of 7 metres. Visibility typically spans 5 to 15 metres. Divers should be aware of mild currents and potential surge or swell near the rocky shoreline. Water temperatures fluctuate between 9 and 15 degrees Celsius, necessitating appropriate thermal protection. Parking is available directly at the site, facilitating easy preparation. Night diving is possible when conditions permit, with typical dive times around 45 minutes.

Marble Hill in Mulroy Bay, Ireland, features a reef environment characterised by rock outcrops at the eastern end of the beach. This site is suitable for beginners, offering a shallow average depth of 3 metres with a range of 1 to 5 metres. Snorkellers can expect mild currents and visibility ranging from 3 to 15 metres. Access is via the shore, with facilities including parking, toilets, and showers available. Water temperatures fluctuate between 9C and 15C throughout the year, necessitating appropriate thermal protection. Hazards at this location include sea urchins and sharp coral. Typical sessions last approximately 45 minutes.

Horn Head in Mulroy Bay offers a diverse underwater landscape featuring reefs, kelp forests, and cave systems. Divers can explore depths ranging from 5 to 30 metres, with an average depth of 15 metres. The site is subject to moderate currents, surge, and surf, requiring boat access and careful planning around slack water. Visibility is highly variable, fluctuating between 5 and 30 metres. Due to water temperatures between 9 and 15 degrees Celsius and potential surge, a drysuit is recommended. Divers should maintain close contact with their guide and carry a surface marker buoy to manage the changing conditions.

Kincasslagh Bay in Donegal, Ireland, offers a sheltered environment for snorkelling, particularly suited to beginners. Located on the inner side of Cruit Island, the site features shallow, calm waters. The seabed consists of a sandy bottom interspersed with rocky patches and areas of seagrass. Water temperatures at this site vary throughout the year, ranging from 9C in the winter months to 16C in August. Access to the water is via the shore. With a snorkel rating of 3/5, it provides a accessible experience for those looking to explore the coastal shallows of the region.