The Shuna Wreck is a notable wreck site located in the Sound of Mull, resting at depths between 16 and 32 metres with an average depth of 18 metres. This site is suitable for intermediate divers with wreck certification. Access is strictly by boat, and divers should be prepared for surge and swell conditions during entry. Visibility typically ranges from 10 to 30 metres, though divers must remain cautious of sharp edges and entanglement risks throughout the structure. Due to local boat traffic, the use of a surface marker buoy is essential. The site experiences mild currents, though water movement can change during the dive.

The Hispania is a shipwreck located in the Sound of Mull, resting at a depth of approximately 15 metres. This site offers a dive experience focused on the remains of the vessel. Conditions in the Sound of Mull vary, and divers should be prepared for water temperatures ranging from 8C to 14C throughout the year. Due to the nature of wreck diving and the specific depth, this site is generally suited for divers with appropriate training and experience in wreck environments. Access to the site is typically by boat.

Lochaline Pier provides access to a diverse underwater environment featuring vertical walls, reefs, kelp forests, and wrecks within the Sound of Mull. The site is characterised by a dramatic drop-off, with depths ranging from 1 to 90 metres. Due to strong currents, boat traffic, and cold water temperatures between 8C and 14C, this site is suited for advanced divers. Snorkellers can explore the shallower sections near the old pier. Divers should be aware of hazards including low visibility, entanglement risks, and down currents. Facilities at the site include parking, air fills, a dive shop, boat charters, guided tours, a cafe, and gear storage.

Lochaline provides diverse underwater topography including wrecks, walls, and reefs accessible via a single shore entry. The site spans a significant depth range from 1 to 90 metres, with an average depth of 20 metres. Visibility typically fluctuates between 3 and 15 metres. Divers should be prepared for moderate currents, which can strengthen, alongside potential down currents and boat traffic. Due to water temperatures ranging from 8 to 14 degrees Celsius, a drysuit is recommended. An on-site dive shop provides air fills and guided tours, which are advised for managing the site's specific current patterns and depth profiles.

Calve Island Cove is a diverse dive site within the Sound of Mull, featuring a combination of reef, wall, and kelp forest topography. This site requires boat access and is suited for intermediate divers due to moderate currents and depths ranging from 10 to 44 metres, with an average depth of 20 metres. Visibility is typically around 15 metres. The underwater environment supports a variety of temperate marine life and invertebrates typical of the region. Divers should be prepared for deep water, potential low visibility, and strong currents. Air fills and guided tours are available for those visiting this location.

The Thesis Wreck is a notable shipwreck located in the Sound of Mull, resting at depths between 20 and 32 metres with an average depth of 26 metres. This site is suited for intermediate divers due to the strong currents and the requirement for precise slack water timing. The wreck structure offers penetration and swim-through opportunities, though divers must remain cautious of entanglement hazards. Visibility typically ranges from 5 to 10 metres. Water temperatures vary from 8 to 14 degrees Celsius, making a drysuit essential. Access is by boat only, and divers should carry a surface marker buoy and a cutting tool. Active boat traffic is common in the area.

Calgary Bay on the Isle of Mull is a shore-entry site known for its white shell sand and rocky edges that transition into kelp forests. Suitable for beginners, the site offers a snorkel experience with water temperatures ranging from 8C to 15C throughout the year. The habitat supports a variety of temperate marine life, including various reef fish and invertebrates typical of the region. Snorkellers can explore the shallow areas where the rocky topography provides shelter for local species. Conditions vary, so visitors should assess the water state before entry.

Loch Sunart Wall is a wall and reef site located within the Sound of Mull Wrecks area. The topography features a wall structure suitable for intermediate divers, with depths ranging from 15 to 50 metres and an average depth of 20 metres. Conditions are variable, with strong currents and visibility typically between 5 and 10 metres. Divers may experience a gin and tonic effect in the surface layer. Access is available via both shore and boat entry. Hazards include entanglement, low visibility, strong currents, and surf. Facilities at the site include air fills, guided tours, parking, and boat charter services.