Bass Rock is a marine dive site located within the St Abbs Marine Reserve in the United Kingdom. Divers typically experience depths ranging from 10 to 14 metres. Water temperatures at this location vary throughout the year, fluctuating between 7C in the winter months and reaching up to 14C during August and September. Given the variable nature of the North Sea environment, conditions can change, and divers should plan accordingly. The site is accessible for those interested in temperate marine exploration within the protected waters of the reserve.

Yellowcraig Beach, located within the St Abbs Marine Reserve, offers a shore-entry snorkelling experience suitable for beginners. The site features a sandy beach with rocky outcrops to the west and provides views of Fidra Island. Conditions are generally mild, though snorkelers should be aware of potential surf and the presence of jellyfish. Water temperatures fluctuate between 6C and 15C throughout the year, necessitating appropriate thermal protection such as a 6/5/4mm wetsuit with hood, gloves, and boots during colder months. On-site facilities include parking, toilets, showers, changing rooms, and a rinse station to support visitors.

Dunbar is a combined natural and artificial reef located within the St Abbs Marine Reserve. The site features depths ranging from 10 to 15 metres, with an average depth of 12 metres. Divers can access the site via shore or boat, though entries require caution due to potential surf and surge. Visibility is variable, ranging from 1 to 10 metres, and water temperatures fluctuate between 7C and 14C throughout the year. A drysuit is recommended for these conditions. The site is suitable for beginners, though divers should remain aware of moderate currents and boat traffic in the area. Facilities including parking, toilets, and a cafe are available nearby.

Mermaid's Kirk is a sea cave site situated at the base of red sandstone cliffs on the East Coast of Scotland. This site consists of a series of sea caves and tunnels accessible via shore entry. Due to the overhead environment and potential for rip currents and surf, it is suited for advanced snorkellers. Conditions vary, with water temperatures ranging from 7°C to 14°C throughout the year. Divers and snorkellers should be aware of hazards including cold water, entanglement, jellyfish, and low visibility. The site is best explored during low tide in calm sea conditions.

Seafield Tower offers a unique snorkeling experience alongside the ruins of a 16th-century castle. The site topography is defined by two rocky islands and sandstone gullies, which provide shelter for juvenile fish. Access is via the shore, and the site is suited for intermediate snorkelers. Conditions can be challenging, with hazards including jellyfish, strong currents, and surf. Water temperatures are cool, ranging from 6C to 15C throughout the year, and are not considered suitable for comfortable swimming. Facilities at the site include parking, toilets, and showers.

St Abbs Marine Reserve offers a diverse range of underwater topography, including reefs, walls, drift sites, wrecks, and caves. Depths range from 3 to 30 metres, with an average of 15 metres. Divers can expect moderate currents and visibility between 5 and 15 metres. Water temperatures are cold, ranging from 7 to 13C throughout the year, making a drysuit recommended. Access is available via both shore and boat entries. The site is suited for intermediate divers, with typical dive times around 50 minutes. Hazards include potential entanglement, jellyfish, strong currents, and surf. Facilities at the site include parking and air fills.

Glanmire is a combined wreck and reef site located 300 metres offshore within the St Abbs Marine Reserve. The site features depths ranging from 20 to 37 metres, with an average depth of 30 metres. Divers encounter strong currents, necessitating careful planning around slack water and tidal windows. Visibility typically fluctuates between 5 and 15 metres. Due to the overhead environment within the wreck, entanglement risks, and cold water temperatures between 7 and 12 degrees Celsius, this site is suited for intermediate divers. A drysuit is recommended for thermal protection. Boat access is required, and divers should remain close to the vessel during descent.