Gäven is a reef site located near Lysekil, Sweden, offering a typical depth range of 9 to 20 metres. Access to this site requires a boat. Divers should be prepared for mild currents and visibility ranging from 5 to 15 metres. Water temperatures fluctuate significantly throughout the year, reaching up to 16C in late summer and dropping to 4C in winter. The site is suitable for intermediate divers. Hazards include cold water, low visibility, and potential surge. Species recorded around this area include wrasses, squat lobsters, common lobsters, king crabs, pipefish, and various jellyfish. Night diving is possible at this location.

Släggö is a versatile dive site located at the mouth of a fjord in Lysekil, Sweden. Divers access the water from the shore to explore a varied topography that includes a sloping bottom, a wall, stone piles, and wreck remains. The site offers depths ranging from 1 to 31 metres, with an average depth of 16 metres. Conditions are generally suitable for intermediate divers, featuring mild currents and visibility between 5 and 25 metres. Facilities at the site include parking, toilets, showers, changing rooms, a rinse station, and access to air fills and boat charters. Night diving is also available at this location.

Lysekil is a marine dive site in Sweden that requires boat access. The site features a reef structure that provides a navigational environment for divers. Water temperatures are relatively warm, ranging between 25 and 30 degrees Celsius throughout the year. Conditions such as current and visibility are variable, and divers should check local reports before entering the water. As facilities are not confirmed at this location, divers must arrive self-sufficient with all necessary equipment. Divers should be aware of potential hazards including jellyfish and sea urchins, and manage their depth to avoid decompression requirements or nitrogen narcosis.

Storebonden is a reef and wall site located off the coast of Lysekil, Sweden. The site features a vertical wall profile that descends to depths between 15 and 20 metres, with an average depth of 17 metres. Divers experience mild currents and visibility typically ranging from 5 to 10 metres. This site is suitable for intermediate divers and requires boat access. Water temperatures fluctuate significantly throughout the year, ranging from 4 to 16 degrees Celsius. Air fills are available locally. Species recorded around this area include wrasses, squat lobsters, giant jellyfish, cuckoo wrasse, gurnard, common lobster, rock crab, common moon jellyfish, striped red mullet, cod, sea stars, pipefish, crabs, and snails.

Lysekil Havn in Gullmarsfjorden offers a diverse underwater environment featuring reefs, walls, and seagrass beds. Suitable for intermediate divers, the site reaches depths between 8 and 30 metres with an average of 15 metres. Divers can access the water from either the shore or a boat. Conditions include mild currents and visibility ranging from 5 to 10 metres. Water temperatures fluctuate significantly throughout the year, from 4C in winter to 14C in late summer. Hazards include deep water, variable visibility, and potential surge. Species recorded around this area include wrasses, squat lobsters, giant jellyfish, cuckoo wrasse, gurnard, common lobster, king crab, lumpfish, flatworms, various crabs, shrimp, and spirograph.

Dragsholme is a sheltered reef dive located on the Swedish west coast. The site features a reef structure at depths between 8 and 14 metres, suitable for beginner divers. Visibility typically ranges from 5 to 10 metres, with mild currents present. Access is by boat. Water temperatures vary significantly throughout the year, ranging from 4 to 16 degrees Celsius, necessitating appropriate thermal protection such as a drysuit or thick wetsuit. Species recorded around this area include bobtail squid, squat lobster, wrasses, giant jellyfish, lumpfish, cuckoo wrasse, common lobster, gurnard, king crab, flatworm, rock crab, pipefish, crab, and shrimp.

Kåvra is a reef site located in Gullmarsfjorden, Sweden. This shore-entry dive offers a varied topography with depths ranging from the surface down to 30 metres, averaging 18 metres. Conditions at this site are variable, with water temperatures fluctuating between 4C in February and 14C in August and September. Due to the depth profile and environmental conditions, this site is best suited for intermediate divers. As a reef environment, the site provides a typical habitat for regional marine life, though specific species observations are not recorded for this location.

Skar in Gullmarsfjorden offers a combination of reef and wall topography suitable for intermediate divers. The site features depths ranging from 13 to 30 metres, with an average depth of 25 metres. Access is via a shore entry, and divers should be prepared for mild currents and occasional surge. Visibility typically fluctuates between 5 and 10 metres. Water temperatures vary significantly throughout the year, ranging from 4C in February to 16C in August and September. Night diving is possible at this location. Species recorded around this area include wrasses, squat lobsters, king crabs, common lobsters, cuckoo wrasse, lumpfish, and various crab and sea star species.