Missingene in Hvaler and Fredrikstad offers a diverse underwater environment featuring both a wreck and a reef. Divers can explore depths ranging from 5 to 30 metres. The site is accessible only by boat and is suitable for beginners, with currents typically remaining mild. Visibility at the site generally ranges between 5 and 10 metres. Water temperatures are cold, fluctuating between 4C and 14C throughout the year. On-site facilities include toilets for visitor use. Due to the cold water conditions, appropriate thermal protection is required for all dives.

Busteinsundet is a wall dive located in Hvaler and Fredrikstad, Norway. The site features a vertical rock face that drops from 15 metres to a depth of 25 metres. Divers should expect visibility between 5 and 10 metres and water temperatures ranging from 4C to 14C, making a drysuit necessary. Access to this site requires a boat. While the wall offers a stable environment for exploration, divers must remain aware of strong currents and monitor conditions throughout the dive. Night diving is possible, allowing for observation of invertebrates that become more active after dark. This site is suitable for intermediate divers.

Verdens Ende is a shore-entry reef site located in Hvaler and Fredrikstad, Norway. The site features a depth range of 12 to 40 metres, with shallower sections suitable for beginners and deeper areas for experienced divers. Visibility typically ranges from 10 to 30 metres. Divers should be prepared for cold water temperatures between 4 and 12 degrees Celsius, making a dry suit necessary. Entry involves navigating a surf zone, and mild currents are present. Facilities at the site include parking and a cafe for post-dive warmth. Always scout the entry point before gearing up, as the shore break can shift with tide and swell.

Ferder Fyr is a reef and wall dive site located in the waters of Hvaler and Fredrikstad. The site features depths ranging from 18 to 30 metres, though it extends to 50 metres, requiring careful depth monitoring to manage nitrogen narcosis risks. Divers experience visibility between 5 and 10 metres with mild currents. Due to water temperatures fluctuating between 4 and 14 degrees Celsius, a drysuit is strongly recommended to prevent hypothermia. Access is by boat only, and the site is suitable for beginners with appropriate certification. Hazards include cold water, entanglement, and potential surf conditions. Always confirm local boat logistics and current conditions before planning a dive.

Dykkerhuset is an artificial reef site located in Drøbak and Vestby, Norway, offering shore access for divers. The site features a structure that reaches a maximum depth of 33 metres, requiring careful depth monitoring. Conditions are variable, providing an environment for divers to gain experience in changing visibility. Water temperatures fluctuate between 4C and 18C throughout the year, necessitating appropriate thermal protection. The site is suitable for beginners and supports night diving. On-site facilities include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, and guided tours.

Gullholmen is a wall dive located off the coast of Drøbak and Vestby, Norway. The site features a wall that descends from the surface to a depth of 28 metres. Suitable for intermediate divers, the site experiences mild currents, though conditions vary and visibility can be inconsistent. Water temperatures range from 4C to 14C throughout the year, necessitating the use of a drysuit. Boat access is required to reach the site, and divers should carry a surface marker buoy and a dive light. Hazards include cold water and depth, and divers should exercise caution to avoid contact with sharp rocks on the reef and jellyfish.

Svenner fyr is a reef dive located off the coast of Hvaler and Fredrikstad, Norway. The site features a reef structure extending from 10 to 30 metres in depth, making it suitable for beginners. Divers experience mild currents and visibility ranging from 5 to 10 metres. Due to water temperatures between 5 and 13 degrees Celsius, a drysuit or thick wetsuit is essential. The reef supports various temperate marine life and invertebrates. Access is by boat only, and divers should remain aware of boat traffic during ascents. Use caution near the reef, as the rocks are sharp.

Mulåsodden is a wall dive located in Drøbak and Vestby, Norway. The site features a wall topography with depths typically ranging between 16 and 19 metres, though the average depth is recorded at 20 metres. Access to this site requires a boat. Divers should be prepared for moderate currents and visibility that fluctuates between 5 and 15 metres. Water temperatures vary significantly throughout the year, ranging from 4C in the winter months to 15C in September. Due to the depth and environmental conditions, this site is suited for intermediate divers. Typical dive times at this location are approximately 40 minutes.