Gråholmen is a reef site located between Arendal and Tvedestrand in Southern Norway. The site features a varied topography with depths ranging from 10 to 40 metres, averaging 25 metres. Access to this location requires a boat. The water temperature fluctuates between 5C and 11C throughout the year, necessitating appropriate thermal protection. The site is suitable for beginners and supports night diving. As a marine reef environment, the area is expected to host a variety of temperate marine life, including reef fish and invertebrates typical of the region. Divers should be prepared for variable conditions common to the Southern Norway coastline.

Soldaten is a shallow marine dive site located between Arendal and Tvedestrand in Southern Norway. The site features a consistent depth of approximately 8 metres, making it suitable for beginner divers. Water temperatures fluctuate throughout the year, ranging from 5C in the winter months to 17C in August. As a temperate marine environment, the site supports a variety of local marine life typical of the region, including various invertebrates, cephalopods, and temperate fish species. Divers should be prepared for variable conditions typical of the Southern Norway coastline.

Vesøya Fyr is a shore-entry dive site located in Arendal and Tvedestrand, Norway. The site features a shallow depth profile, typically ranging between 7 and 10 metres with an average depth of 9 metres. Conditions at this location are variable, with visibility ranging from 3 to 10 metres. Water temperatures fluctuate significantly throughout the year, reaching a high of 17C in August and dropping to 5C during the winter months. Due to the shallow depths and accessible entry, the site is suitable for beginner divers.

Bjorøy is a reef site located 1000 metres from the shore in the Arendal and Tvedestrand area of Norway. This site is suitable for beginners and typically involves a 45-minute dive. The topography features depths ranging between 8 and 9 metres, with an average depth of 8 metres. Access to the site is by boat only. Divers should be prepared for cold water temperatures, which fluctuate between 5C and 17C throughout the year, as well as variable visibility between 5 and 15 metres. Conditions include mild currents and potential surge, requiring appropriate thermal protection and experience with low-visibility environments.

Helvetessundet is a reef and wall site located in Southern Norway. The topography features a wall that drops into deeper water, with depths ranging from 12 to 35 metres. Shallower reef sections provide suitable areas for beginner divers. Visibility at the site varies between 10 and 30 metres. Access is by boat only, and the site experiences mild currents. Water temperatures are cold, ranging from 4 to 12 degrees Celsius throughout the year, necessitating the use of a drysuit. Onshore support is not guaranteed, so divers should arrange boat charters and equipment locally.

Stangholmen is a reef site located 1000 metres offshore in Southern Norway. Divers experience depths ranging from 15 to 35 metres, with an average depth of 25 metres. The site is accessible only by boat and features moderate currents, making it suitable for intermediate divers with drift diving experience. Visibility varies between 10 and 30 metres. Water temperatures are cold, ranging from 4 to 12 degrees Celsius, necessitating the use of a drysuit. The site supports a variety of temperate marine life and invertebrates typical of the region. On-site facilities include a cafe, toilets, and showers for post-dive recovery.

Olavsgapet is a reef dive located in Southern Norway, featuring a topography that descends from 10 to 34 metres. The site is accessible only by boat and is suited for intermediate divers. Visibility typically ranges between 5 and 10 metres. Water temperatures are cold, fluctuating between 5 and 12 degrees Celsius throughout the year, necessitating the use of a drysuit. While currents are generally mild, they can strengthen, and divers should consult with their boat operator regarding current conditions before descending. Due to the depth and environmental factors, this site is best suited for those with appropriate cold-water experience and advanced certification.

Kvasefjord is a reef dive located in Kristiansand, Norway, offering calm and current-free conditions suitable for beginners. The reef structure extends from 15 to 30 metres in depth, providing a range of options for divers. Visibility at the site typically ranges between 10 and 30 metres. Divers can access the site via either shore or boat entry. Given the water temperatures, which fluctuate between 5 and 12 degrees Celsius throughout the year, a drysuit is strongly recommended. When diving or snorkelling, remain alert for jellyfish in the water column and exercise caution during shore entries.