Lysbotnfluene is a deep reef site located in Fosen, Norway, offering depths between 25 and 40 metres. This site is suited for intermediate divers who are comfortable with cold water and managing strong currents. Visibility at the reef ranges from 10 to 30 metres. Access to the site is by boat only. Divers must plan their dives carefully around the tidal cycle, as strong currents are a regular feature of this location. Water temperatures fluctuate between 6 and 12 degrees Celsius throughout the year. Due to the nature of the currents, precise timing around slack water is essential for a safe dive.

Irma is a wreck site located in Fosen, Norway, offering depths ranging from 13 to 42 metres with an average depth of 27 metres. This site requires boat access and is suited for intermediate divers due to strong currents and the potential for entanglement within the superstructure. Visibility typically ranges between 10 and 30 metres. Divers should plan their dives around slack water to manage the demanding current conditions. Given the depth, precise buoyancy control and careful air management are essential. Always carry a surface marker buoy and ensure reliable boat cover is present throughout the dive.

Hambåra Torpedobatteri is an artificial reef site located in Fosen, Norway, formed by the submerged remains of a former torpedo battery. The site extends from the surface to a maximum depth of 22 metres, offering sections suitable for beginner divers. Divers can explore the structural remnants in a marine environment that supports a variety of temperate reef fish and invertebrates. Water temperatures range from 6C to 13C, necessitating the use of a drysuit. Entry is from the shore, and while moderate currents are typical, divers must be aware of the potential for strong currents. Always check local conditions before entering the water as visibility is variable.

Hamborra in Fosen, Norway, features a cold-water reef and kelp forest environment located 50 metres from the shore. Divers can access the site by boat or from the shore, with depths typically ranging between 15 and 30 metres. Conditions include moderate currents and visibility fluctuating between 5 and 15 metres. Water temperatures remain between 6 and 12 degrees Celsius, necessitating the use of a drysuit. The site is suitable for beginners with an Open Water certification, though divers must remain vigilant regarding boat traffic and shifting currents. Local facilities include air fills, a dive shop, and boat charter services to support diving operations.

Ingdalen is a shore-accessible dive site in Trondheim, Norway, featuring a diverse underwater topography. The site transitions from a shallow reef and kelp forest above 10 metres to a wall that descends to 30 metres. Divers should expect mild currents and variable visibility, which typically ranges from 5 to 20 metres. Due to the depth and potential for entanglement in wall structures, this site is suited for intermediate divers. Shore entry requires careful movement, and divers should maintain conservative bottom times and monitor gas reserves throughout the 40-minute average dive duration. Navigation should be adjusted to account for visibility fluctuations.

The M-S Moi is a deep wreck located in the Trondheimsfjord, resting at depths between 37 and 46 metres. This site is intended for advanced divers due to the significant depth, potential for entanglement within the structure, and moderate currents. Visibility typically ranges from 5 to 10 metres, requiring careful navigation as the wreck comes into view. Water temperatures remain cold, fluctuating between 6 and 12 degrees Celsius, necessitating the use of a drysuit. Access to the site is strictly by boat. Divers must monitor their depth and gas management closely, as the surrounding seabed extends to 70 metres.

Flesa is a boat-access reef located in Fosen, Norway, offering a deep diving experience that ranges from 15 to 35 metres. The site features a reef structure with visibility typically between 10 and 30 metres. Divers should be prepared for moderate currents and water temperatures ranging from 6 to 12 degrees Celsius. Due to the cold conditions and the site extending to 60 metres, drysuit experience and precise buoyancy control are essential. This site is suited for intermediate divers who can manage ascent and depth monitoring in a North Atlantic environment. Infrastructure is limited, so confirm boat charter availability locally before planning your trip.

Trasavika is a reef and wall dive site located in Trondheimsfjord, Norway. The site reaches a maximum depth of 25 metres, with an average depth of 20 metres. Divers experience moderate currents and visibility ranging from 5 to 10 metres. Shore access is available, though boat entry is recommended to avoid surge and currents. The site features on-shore facilities including parking, toilets, showers, and changing rooms. Due to the cold water conditions, a drysuit is required. Divers should remain vigilant for boat traffic and use a surface marker buoy during all ascents. This site is suitable for beginners, though careful depth management is necessary.