Stora Knappen is a demanding wall and reef site located in the Bohuslän archipelago near Smögen. The site features a vertical wall dropping to 35 metres, with an average depth of 22 metres. Divers encounter strong currents and surge, requiring advanced buoyancy control and current-reading skills. Visibility typically ranges from 10 to 15 metres. Given the depth profile and potential for nitrogen narcosis below 30 metres, this site is strictly for advanced divers. Boat access is required, and the use of a surface marker buoy is essential due to local boat traffic. Divers must plan for decompression stops and monitor gas consumption carefully throughout the dive.

Waeteroe is a reef and wall dive located 1000 metres offshore in the Bohuslän archipelago. The site features a wall dropping to depths of 30 to 40 metres, with an average depth of 35 metres. Divers experience moderate currents that require solid buoyancy control, and surge is common near the reef structure. Visibility ranges from 10 to 30 metres. Water temperatures are cold, fluctuating between 4C and 13C, necessitating dry suits and thermal protection. Access is by boat only, and guided tours are available. Divers should be aware of sea urchins on the rock face and boat traffic during ascents.

Lilla Knappan is a wall dive located off the coast of Smögen, Sweden. The wall drops from the surface to a maximum depth of 22 metres. This site is accessible by boat only and features mild currents, making it suitable for beginner divers. The rocky topography provides shelter for various temperate marine life. Water temperatures range from 4C to 16C, necessitating appropriate thermal protection such as a drysuit or thick wetsuit with hood and gloves. Visibility at this site is variable, so conditions should be checked locally before diving. Divers should exercise caution regarding sharp rocks and depth.

Trollskär Insidan is a reef dive site located near Smögen, Sweden. The site is accessed by boat and is suitable for intermediate divers due to the presence of strong currents. Divers can expect an average depth of 16 metres, with visibility typically ranging between 10 and 15 metres. Water temperatures fluctuate significantly throughout the year, ranging from 4C in February to 16C in August and September. Night diving is permitted at this location. As a reef environment, the site offers a distinct underwater topography for exploration, though divers should remain cautious of the strong currents that characterise the area.

Hamnerö is a reef dive site located near Smögen, Sweden. The site is characterised by a consistent depth of 8 metres, making it suitable for beginner divers. Access to this location requires a boat. Water temperatures at the site vary throughout the year, ranging from 4C in February to 17C in August. Divers should be prepared for these seasonal temperature fluctuations when planning their dives. As a reef environment, the site offers a specific topography for exploration at a shallow, uniform depth.

Södra Ärholmen is a wall dive located off the coast of Smögen, Sweden. The wall descends from 8 metres to a maximum depth of 24 metres, with an average depth of 10 metres. Divers should expect moderate currents and visibility ranging from 10 to 15 metres. Due to water temperatures between 4 and 15 degrees Celsius, a drysuit is strongly recommended. The site features cave and swim-through areas, requiring careful buoyancy control to avoid overhead environments. Boat access is required to reach this location, which is situated 15 kilometres from the shore. A cafe is available on site for post-dive refreshments.

Stora Sundskär is a wall and drift dive site in the Bohuslän archipelago, featuring a vertical rock face that descends to 40 metres. Divers experience visibility ranging from 10 to 20 metres. While currents are typically mild, they can strengthen, requiring careful assessment before entry. Due to water temperatures between 4 and 13 degrees Celsius, a drysuit is essential for this dive. Boat access is required, and the site is best suited for intermediate divers comfortable with drift conditions and depth. The wall supports temperate reef life and invertebrates typical of the Swedish west coast.

Trollskär is a wall dive located off the coast of Smögen, Sweden. The wall descends from the surface to a depth of approximately 24 metres, providing a vertical structure for intermediate divers. Visibility typically ranges between 10 and 15 metres. Due to water temperatures fluctuating between 4 and 15 degrees Celsius and the presence of moderate currents, a drysuit is recommended for most visitors. Access to this site is by boat only, and divers should arrive fully self-sufficient with all equipment prepared. The site features a temperate Scandinavian reef habitat, and species recorded around this area include wrasses, nudibranchs, lobsters, crabs, and various echinoderms.