Sisjön is a shallow freshwater site in Bohuslän, Sweden, offering accessible conditions for beginners and snorkellers. The site features depths ranging from the surface to 8 metres, with visibility typically around 6 metres. Divers and snorkellers can access the water from the shore. Conditions are generally manageable with mild currents, though cold water is a primary hazard throughout the year, requiring appropriate thermal protection. The site is suitable for night diving and provides on-site facilities including parking and toilets. Water temperatures fluctuate between 3C and 17C depending on the month, making a drysuit or thick wetsuit necessary for comfort.

Bohuslän Reef is a boat-access site located 10 kilometres from the coast of Sweden. The reef structure spans depths from 5 to 25 metres, with an average depth of 15 metres. Divers should expect moderate currents that can strengthen, particularly in deeper sections. Visibility is variable, ranging between 3 and 15 metres. Water temperatures fluctuate from 3°C in winter to 17°C in summer, making drysuits the standard choice for most of the year. Due to active boat traffic in the area, the use of a surface marker buoy is essential during ascent. This site is suited for intermediate divers.

Kullavik hamn in Bohuslän, Sweden, offers a diverse underwater environment featuring natural reefs, artificial reef structures, and seagrass beds. Situated just 10 metres from the shore, this site is accessible for beginners with depths ranging from 5 to 10 metres. Divers can expect mild currents and visibility between 5 and 15 metres. The habitat supports various temperate reef fish and invertebrates. Water temperatures fluctuate between 3 and 17 degrees Celsius, making a drysuit recommended. Due to the proximity of the harbour, boat traffic is a primary hazard; divers must deploy a surface marker buoy before surfacing. Facilities including parking, toilets, and showers are available on site.

Tangen Hoenoe is a shore-entry reef and wall dive located along the Bohuslän coast. The site features a wall structure that provides a clear reference point for navigation, reaching depths between 15 and 20 metres with an average of 17 metres. Conditions are generally mild, with visibility ranging from 5 to 15 metres. Due to the significant temperature variation, ranging from 3°C to 17°C, thermal protection is essential for all divers. The site is suitable for beginners looking to gain experience in Nordic terrain. Parking is available at the entry point, though it can become busy on weekends.

Marina af Hönö, located on the Bohuslän coast, provides shore-based diving across artificial reef structures. The site reaches depths of up to 25 metres, though shallower areas are available for those building confidence. Divers should exercise caution during entry to avoid entanglement on the artificial structures. Conditions are variable, with water temperatures ranging from 3C in winter to 18C in summer. Strong currents can occur, requiring careful monitoring of local conditions before entering the water. Due to the significant temperature fluctuations, a drysuit is strongly recommended for dives conducted outside of the summer months.

Trubaduren fyr is a combined natural and artificial reef located off the Bohuslän coast. The site features depths ranging from 18 to 30 metres, with an average depth of 20 metres. Access is strictly by boat, and divers must be prepared for moderate currents that can intensify near the lighthouse structure. Visibility typically fluctuates between 5 and 15 metres. Given the cold water temperatures, which range from 3 to 15 degrees Celsius, a drysuit is essential. Due to the depth and potential for strong currents and surf, this site is suitable for supervised beginners and experienced divers who are comfortable managing current and nitrogen narcosis risks.

Nieman is a wreck dive located in the cold waters of Bohuslän, Sweden. The site sits at depths ranging from 20 to 39 metres, with an average depth of 30 metres. Access is by boat only. Divers should be prepared for mild to strong currents and variable visibility that can drop significantly. The environment includes overhead sections such as caves or swim-throughs, requiring careful attention to orientation and ceiling awareness. Given the water temperatures of 3 to 15 degrees Celsius, a drysuit is recommended. Divers should carry a torch and backup light due to the potential for low-light conditions at depth.

Benskär in Bohuslän offers a combination of wall and reef terrain, providing two distinct underwater environments for intermediate divers. The site features a structure that extends to a depth of 21 metres, with deeper water located further out. Conditions at this site are variable, with fluctuating currents and visibility that can shift between visits. Water temperatures range from 3C in winter to 17C in summer, necessitating appropriate thermal protection year-round. Access to the site is by boat only. Divers should remain vigilant for boat traffic when surfacing and are advised to use a surface marker buoy to signal their position.