Hammer Hulerne is a shore-entry reef and cave site located on Bornholm, Denmark. The site is suitable for beginners, with an average depth of 4 metres and a maximum depth range between 3 and 4 metres. Divers and snorkellers can expect moderate currents and visibility typically ranging from 4 to 8 metres. The environment supports a variety of temperate marine life, including reef fish and invertebrates common to the region. Hazards at this site include cold water, entanglement risks, jellyfish, surf, and surge. Facilities available at the location include parking and a cafe. Typical dives last approximately 30 minutes.

Russisk U Båd is a wreck dive located 4300 metres off the coast of Bornholm, Denmark. This site is suitable for intermediate divers and requires boat access. The wreck lies at depths between 30 and 39 metres, with an average depth of 35 metres. Divers should expect moderate currents and visibility ranging from 15 to 20 metres. Water temperatures are cold, fluctuating between 4C and 11C throughout the year. Due to the depth and the nature of the wreck, hazards include cold water, entanglement risks, and overhead environments. Typical dive times are approximately 30 minutes. Boat traffic is a known hazard at this location.

Opalsoen is a freshwater dive site located on Bornholm, Denmark, offering a shore-entry experience. The site features a depth range of 4 to 10 metres, making it suitable for intermediate divers. Visibility at the site typically ranges between 5 and 10 metres. Water temperatures fluctuate significantly throughout the year, ranging from 4 to 18 degrees Celsius, requiring appropriate thermal protection for the season. Due to the deep water hazard, divers should remain aware of their surroundings and seek local advice before entering. As there are no confirmed facilities on-site, divers must arrive self-sufficient with all necessary equipment prepared in advance.

Naes is a shallow shore dive located off the coast of Bornholm, Denmark. The site features a reef accessible directly from the shore, with depths ranging between 3 and 6 metres. It is a calm environment with no current, suitable for divers building confidence in open water. Visibility is variable and can reach zero, so checking conditions before entry is advised. Water temperatures fluctuate significantly throughout the year, ranging from 4C to 19C, necessitating appropriate thermal protection. Divers should maintain awareness of their surroundings at all times due to the presence of lionfish in the area.

Allinge, located off the coast of Bornholm, Denmark, offers shore-based diving across a reef and canyon system. The site features depths ranging from 5 to 13 metres and visibility between 5 and 15 metres. Navigation is straightforward due to the absence of currents. Water temperatures fluctuate significantly, from 4C in winter to 17C in summer, necessitating appropriate thermal protection such as a drysuit or thick wetsuit. Divers should exercise caution regarding sharp rock formations and reef edges during entry and while underwater. Boat traffic is a potential hazard, so maintain awareness during surface intervals and when surfacing. This site is suitable for divers with at least an Open Water certification.

Sandvig is a shallow reef dive located off the coast of Bornholm, Denmark. The site offers a straightforward shore entry and is suitable for beginners, with depths ranging between 3 and 6 metres. Divers should be prepared for moderate currents and the potential for rip currents, which can develop quickly. Water temperatures fluctuate significantly throughout the year, from 4C in winter to 19C in summer, necessitating the use of a drysuit or thick wetsuit. Facilities at the site include parking, toilets, and showers, supporting a practical day of diving. Always assess local conditions before entering the water, as visibility can vary considerably.

Tejn is a reef site located off the coast of Bornholm, Denmark, offering a consistent depth of 8 to 10 metres. Divers experience visibility ranging from 5 to 15 metres, which allows for clear navigation of the reef structure. While currents are generally mild, the site is subject to surge and swell, particularly near the surface. Due to the potential for strong surf and shore break, boat entry is recommended over shore entry. Water temperatures fluctuate significantly throughout the year, ranging from 4C to 18C, necessitating appropriate thermal protection. A cafe is located nearby for post-dive recovery. This site is suitable for divers with an Open Water certification.

Rubinsoen is a shore-entry reef dive located off Bornholm, Denmark. The site features a rocky reef structure ranging from 5 to 18 metres in depth, with an average depth of 15 metres. Divers should expect moderate currents and visibility typically between 5 and 10 metres. Due to variable visibility and the presence of sharp rocks, high situational awareness and good buoyancy control are required. Water temperatures fluctuate between 4 and 16 degrees Celsius throughout the year, necessitating a drysuit or thick wetsuit. Divers must be self-sufficient, carry a surface marker buoy, and verify local conditions before entry.