Big Harcar is a reef dive located off the Northumberland Coast. The site features depths between 10 and 15 metres and offers visibility ranging from 10 to 30 metres. Divers should expect moderate currents, requiring careful timing of the dive. Given the water temperatures, which fluctuate between 7 and 14 degrees Celsius throughout the year, a drysuit is strongly recommended. Access to this site is exclusively by boat. While the site is suitable for newly qualified divers, it is advisable to seek local guidance regarding boat charter availability and facilities before planning a trip.

The Christenson Propeller is a wreck and reef site located 1600 metres off the Northumberland Coast. Divers can explore the wreck structure and adjacent reef at depths ranging from 13 to 27 metres, with an average depth of 25 metres. Conditions are generally manageable with mild currents and visibility between 10 and 30 metres. Due to the cold water temperatures of 7 to 13C, a drysuit is essential. This site requires boat access, and divers should maintain surface marker buoy discipline due to local boat traffic. The site is suited for intermediate divers, with typical dives lasting around 45 minutes.

The Hopper is a reef and wall site located off the Northumberland Coast. The topography drops from 6 metres to a maximum depth of 40 metres, with an average depth of 13 metres. Divers encounter strong currents, making this site suitable for intermediate divers who can manage drift conditions. Visibility typically ranges between 10 and 30 metres. Marine life recorded at the site includes very common sightings of grey seals, alongside common snails. Less frequently, divers may observe common lobsters, wrasses, sea stars, crabs, rock crabs, sea squirts, and dead man's fingers. Boat access is required, and drysuits are necessary due to water temperatures ranging from 7C to 13C.

The Abessinia Wreck is a boat-accessed dive site situated off the Northumberland Coast. Resting at depths between 15 and 23 metres, the site offers visibility ranging from 10 to 30 metres. Divers should be prepared for moderate currents and water temperatures that fluctuate between 7C and 13C throughout the year. Species recorded around this area include Gray Seal, Harbor Seal, Orange-clubbed Nudibranch, Common Lobster, Squat Lobster, Sea Slug, Wrasses, Giant Jellyfish, Lumpfish, Sea Hare, Common Moon Jellyfish, Sea Star, Brittle Star, and Rock Crab. This site is suitable for experienced divers due to the depth and current conditions.

St Andre is a wreck dive located off the Northumberland Coast, resting at depths between 15 and 25 metres. Accessible only by boat, the site features mild currents, making it suitable for divers comfortable with wreck exploration. Visibility at the site is variable, ranging from 10 to 30 metres. Water temperatures are cool, fluctuating between 7 and 13 degrees Celsius throughout the year, necessitating the use of a drysuit. Divers must remain alert for boat traffic during entry and exit procedures. Due to the depth of the wreck, it is essential to monitor ascents closely and ensure surface markers are visible at all times.

The Farne Islands feature a diverse underwater landscape comprising reefs, walls, kelp forests, and wrecks. Located off the Northumberland Coast, this site offers depths ranging from 10 to 35 metres, with an average depth of 15 metres. Access is strictly by boat charter. Divers should be prepared for cold water temperatures between 7 and 13 degrees Celsius and moderate currents that can fluctuate. Visibility typically spans 5 to 15 metres. Due to the depth and potential for currents, divers must monitor their computers and buoyancy, particularly when navigating near overhead environments. A drysuit is recommended for these conditions.

Crumstone is a reef site located 500 metres off the Northumberland Coast. The site features a consistent depth of approximately 8 metres, making it suitable for beginner divers. Access is exclusively by boat. Divers should be prepared for cold water temperatures ranging from 7C to 15C and visibility typically between 5 and 10 metres. The site is subject to moderate currents and potential surf conditions. Typical dive times at this location are around 40 minutes. Facilities including parking, toilets, and a cafe are available nearby on the coast.

Longstone is a marine dive site located off the Northumberland Coast, featuring a combination of reef and wreck topography. The site maintains a consistent depth of 12 metres. Access is strictly by boat, as the site is situated approximately 8 kilometres from the shore. Divers should be prepared for challenging conditions, including strong currents, surge, and variable visibility ranging from 5 to 15 metres. Water temperatures are cold, fluctuating between 7C and 15C throughout the year, making a drysuit essential for comfort. Due to the presence of boat traffic and strong currents, this site requires careful planning and is best suited for those experienced with cold-water environments.