The Tabarka is a blockship wreck located in Scapa Flow, United Kingdom. Resting upside down in shallow water, the vessel provides an overhead environment with a distinctive cathedral effect created by light filtering through the hull. The site sits at an average depth of 12 metres, with a range between 6 and 15 metres. Due to strong currents and the nature of the wreck, this site is suitable for advanced divers. Access is by boat only. Visibility typically ranges from 10 to 30 metres. Hazards include entanglement, surge, and the overhead environment. Species recorded around this area include the orange-clubbed nudibranch, rock crab, sea star, and European green crab.

The SMS Karlsruhe is a German Imperial Navy light cruiser scuttled in 1919. Lying on her side, the wreck sits at depths between 12 and 27 metres, with an average depth of 25 metres. Divers access the site via boat, with dives typically lasting 40 minutes. Visibility ranges from 10 to 20 metres, allowing for views of the hull and superstructure. Due to moderate currents and cold water temperatures between 8 and 13 degrees Celsius, a drysuit is essential. The site presents hazards including entanglement risks, potential down currents, and nitrogen narcosis at depth. Divers must plan carefully around narrow tidal windows to ensure slack water.

The SMS Markgraf is a scuttled German First World War battleship lying on its side in Scapa Flow. This wreck site features depths ranging from 19 to 45 metres, with an average depth of 35 metres. Divers can explore the hull, gun turrets, and superstructure. Access is by boat only, and the site is suitable for advanced divers due to the overhead environment and potential for entanglement. Visibility typically ranges from 10 to 30 metres. Water temperatures remain cold throughout the year, between 8 and 13 degrees Celsius, necessitating appropriate thermal protection. Moderate currents are present, and planning dives around slack water is recommended.

SMS Kronprinz Wilhelm is a German High Seas Fleet battleship resting upright in Scapa Flow. The wreck spans depths from 12 to 40 metres, with an average depth of 30 metres. Divers can explore the main structure, including massive gun turrets and intact hull plating. The site is accessible only by boat, located 1200 metres from shore. Conditions feature mild currents and visibility between 10 and 20 metres. Due to the cold water temperatures of 8 to 13 degrees Celsius and potential overhead environments, a drysuit and wreck certification are recommended. Divers should be aware of entanglement hazards and the deep nature of the site.

The V 83 Destroyer is a German vessel scuttled in Scapa Flow, resting in an upright position. The wreck lies at depths between 8 and 20 metres, with an average depth of 15 metres. Divers can expect visibility ranging from 10 to 30 metres. The site features mild currents, though the structure presents a significant risk of entanglement, requiring careful buoyancy control. Due to water temperatures remaining between 8 and 13 degrees Celsius, a drysuit is necessary. Boat access is required for this site, and divers should confirm charter availability in advance. The wreck serves as an artificial reef, offering a substantial dive experience for advanced divers.

Scapa Flow features the remains of the German High Seas Fleet, including four light cruisers and three battleships. These wrecks, which range from 24 to 45 metres in depth, offer historical features such as guns, steering wheels, boilers, anchor capstans, and bows. The site is strictly for advanced divers due to depths, moderate currents, and variable visibility between 3 and 20 metres. Access is by boat only, and a drysuit is highly recommended given the water temperatures of 8 to 13C. Species recorded around this area include orange-clubbed nudibranchs, sea stars, common sea stars, crabs, rock crabs, snails, and sea squirts.

SMS König is a scuttled German battleship located in Scapa Flow. The wreck sits upright on the seabed, with the main deck at approximately 16 metres and the hull reaching 42 metres. This site is suited for advanced divers capable of navigating large steel structures. Access is by boat only, and dives typically last 30 minutes. Conditions include moderate currents and visibility ranging from 5 to 20 metres. Water temperatures are cold, between 8 and 13 degrees Celsius, making drysuit diving essential. Divers should be aware of hazards including boat traffic and entanglement risks. Slack water is the recommended window for diving, and coordination with a charter skipper is necessary.

SMS Cöln is a German light cruiser scuttled in 1919, resting upright on the seabed in Scapa Flow. The wreck remains largely intact, offering divers the opportunity to explore recognisable deck features, gun emplacements, and the hull structure. Depths range from 20 to 36 metres, with an average of 30 metres. Access is by boat only. Conditions include mild currents and visibility between 5 and 20 metres. Due to water temperatures of 8 to 13C, drysuits are recommended year-round. Divers should be prepared for cold water and low visibility, and exercise caution when navigating internal wreck structures. Guided tours are available through local operators.