Svendborg Sundbroen in Alssund offers a combination of natural reef and artificial structures suitable for beginner divers. The site features depths ranging from 6 to 12 metres with an average of 6 metres. Divers experience visibility of approximately 5 metres and must contend with moderate currents. Due to the proximity of the navigation channel, boat traffic is a constant hazard, and the use of a surface marker buoy is essential. Water temperatures fluctuate between 4C and 17C, requiring appropriate thermal protection. Parking is available at the site, providing convenient access for shore entries just 5 metres from the shore.

Nicus Nature is a reef and drift dive site located in the Alssund, part of the Little Belt. The site features a reef profile ranging from 2 to 25 metres, with an average depth of 15 metres. Strong tidal currents define the experience, requiring careful planning around tide tables to ensure safety. Visibility typically fluctuates between 5 and 15 metres. Given the water temperatures of 4 to 15 degrees Celsius, a drysuit is recommended. This site is suited for intermediate divers capable of managing drift conditions. Shore access is standard, though divers should remain aware of surge and swell conditions during entry and exit.

Christiansminde in Alssund, Denmark, offers a shallow dive across reef and seagrass habitats. Depths range from 5 to 8 metres, with an average of 7 metres, making it suitable for beginners. Divers can expect visibility between 5 and 10 metres. The site features a shore entry, though divers should be aware of potential surf at the shoreline and mild currents. Water temperatures fluctuate between 4C and 17C, necessitating appropriate thermal protection. Facilities including parking and toilets are available on site. Night diving is permitted, providing an alternative experience for those comfortable with the conditions. The area supports a variety of temperate marine life typical of the region.

MTB 1 is a motor torpedo boat wreck located in the Alssund strait, Denmark. Resting at a depth of 8 to 10 metres, the wreck is suitable for intermediate divers. Visibility at the site typically ranges from 5 to 15 metres. Divers should be prepared for cold water temperatures, which fluctuate between 4C and 17C throughout the year, necessitating a drysuit or thick wetsuit. Access to the site is by boat only. The area experiences mild currents, though tidal flows in the Little Belt can strengthen, and divers must remain vigilant for active boat traffic in the strait. A surface marker buoy is recommended for all ascents.

Wreck S103 is a boat-access dive site located in the Alssund, Denmark. The wreck rests at depths between 20 and 33 metres, with an average depth of 26 metres. Divers encounter moderate currents and limited visibility of approximately 5 metres, necessitating the use of a torch and a reel. Due to the depth and cold water temperatures ranging from 4 to 14 degrees Celsius, this site is suited for intermediate divers. The environment supports temperate marine life typical of the region, including various reef fish and invertebrates. Divers must manage nitrogen narcosis risks and use a surface marker buoy due to active boat traffic in the strait.

Knudshoved Ferry Harbour in the Little Belt offers an intermediate dive experience featuring a wreck and artificial reef structures. The site is shallow, with depths ranging from 6 to 8 metres, allowing for extended exploration. Visibility typically varies between 5 and 10 metres. Divers should exercise caution regarding buoyancy to avoid contact with sharp growth on the structures. Access is via shore, though local advice suggests boat entry to avoid surf and rip currents near the shoreline. Divers must remain vigilant for boat traffic when surfacing and monitor local weather reports for current strength. Water temperatures fluctuate between 4C and 17C, necessitating appropriate thermal protection.

Kaegnaes Faerge is a reef site located in the Alssund strait, characterised by strong currents that dictate the diving experience. The reef sits at depths between 8 and 12 metres, with an average depth of 10 metres. Divers access the site via a shore entry approximately 50 metres from the coast. Visibility typically ranges from 5 to 10 metres. Due to the significant current, this site is suited for intermediate divers with strong buoyancy control. Water temperatures fluctuate between 4C and 17C, requiring appropriate thermal protection. Divers should consult local tidal tables to plan their entry around slack water to manage the current effectively.

The Sophie is a wreck dive located off Northern Germany, resting at a depth of 28 to 29 metres. This site is suited for intermediate divers due to the moderate currents and limited visibility, which averages five metres. Divers should use a drysuit to manage water temperatures that range from 4C to 14C throughout the year. Navigation requires a torch to maintain orientation to the structure. Hazards include potential entanglement within the wreck, limited visibility, and active boat traffic at the surface. Divers must check current tables before planning a descent and ensure they maintain awareness during surfacing.