Romsoe Rev is a shallow reef located in the Little Belt, offering depths between 5 and 9 metres with an average of 7 metres. This site is suitable for beginners, though divers must be prepared for moderate currents that can strengthen significantly. Visibility is generally around 5 metres, requiring divers to focus on the reef structure. Water temperatures range from 4C to 17C throughout the year, necessitating appropriate thermal protection such as a drysuit or thick wetsuit. Access is possible via boat or shore, though caution is advised regarding surf and shore break. Divers should verify tidal conditions locally before entry, as currents can build quickly.

Havnemarken Asnæs in the Little Belt offers a shallow, accessible dive suitable for beginners. Located on the south side of Kalundborg Fjord, the site features a slope with depths ranging from 2 to 8 metres, with the most activity occurring between 2 and 4 metres. Divers can explore a varied topography of seagrass, broadleaf seaweed, feather seaweed, algae, and sandbanks. Entry is possible from the beach or via the jetty during summer months. Conditions are generally calm, though mild currents may occur. The seabed consists of heavy material that settles quickly if disturbed. Parking is available for visitors.

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.

Halskov Rev in the Little Belt is a shore-accessible site featuring a combination of natural reef and artificial structures provided by the bridge piers. Divers typically explore depths between 1 and 7 metres, with an average of 5 metres. The site is characterised by strong currents, requiring careful planning and the use of a surface buoy. Divers should swim against the current at the start of the dive to ensure an easier return. Due to the cold water temperatures, which range from 4C to 19C, appropriate thermal protection is essential to mitigate the risk of hypothermia. Facilities at the site include parking, showers, and a rinse station.

Korsør Gl. Færgehavn is an artificial reef site located in the Little Belt. Divers enter from the shore near the volleyball court and swim approximately 150 metres to reach the ferry berth structures. The site features a tiled bottom, old piles, and remnants of the ferry era, including cavities and fallen bulwark piles. Divers can navigate between beams at the towers southwest of the beach and explore various submerged objects such as shipwrecks and debris. Depths range from 3 to 10 metres with an average of 7 metres. Conditions include mild currents and potential hazards such as boat traffic, entanglement risks, and surf. The site is suitable for intermediate divers and supports night diving.

The south-east coast of Samsø in the Little Belt offers a combination of reef terrain and wreck diving. Divers can explore depths between 15 and 22 metres, where moderate currents support a variety of temperate marine life and invertebrates. Visibility typically ranges from 5 to 10 metres, requiring good buoyancy control. Water temperatures fluctuate between 4 and 15 degrees Celsius, making a drysuit essential for most of the year. Due to the presence of strong currents, this site is suited for intermediate divers. Boat access is required to reach the site, and divers should remain close to the entry point while monitoring current strength throughout the dive.

Havnsø is a shallow reef site located near Hesselø, Denmark, suitable for beginner divers. The site features a maximum depth of approximately 2.5 metres, making it a shallow environment for short dives averaging 30 minutes. Entry is conducted from the shore. Conditions are generally mild, though water temperatures fluctuate significantly throughout the year, ranging from 4C in winter to 19C in August. The site is well-supported by local facilities, including parking, toilets, showers, changing rooms, a rinse station, and a nearby cafe for post-dive refreshments.

Herta is a reef site located in the Little Belt near Strib and Middelfart. The topography consists of a reef structure with depths ranging from 17 to 19 metres, averaging 18 metres. Divers should note that the site can reach 30 metres in some areas. Visibility is consistently around 5 metres, requiring close-up observation of the reef. Access is by boat only. While currents are generally mild, the area is subject to tidal surges, and divers should time their entry around slack water. Water temperatures range from 4C to 16C, necessitating appropriate thermal protection such as a drysuit during colder months.