Blue Banks is a reef and kelp forest site located off Santa Cruz Island within the Channel Islands National Park. The site is accessed exclusively by boat. Divers should be prepared for moderate currents and surge, as well as potential boat traffic in the area. Conditions vary, with water temperatures ranging from 14C to 20C throughout the year. Given the environmental factors, this site is suited for intermediate divers. The topography consists of a shallow reef structure at a depth of approximately 4 metres.

The Towers is a marine dive site located 5000 metres off Santa Cruz Island within Channel Islands National Park. This site features a combination of reef, cave, and cavern topography. Divers can expect depths ranging from 18 to 23 metres, with an average depth of 15 metres. Access to the site is by boat only. Conditions include mild currents, though strong currents can occur, and visibility typically ranges between 10 and 30 metres. Water temperatures fluctuate between 13C and 17C throughout the year. The site is suitable for beginners and is supported by local dive shops offering guided tours and boat charters.

Bowen Point on Santa Cruz Island offers a combination of reef and wall topography suitable for beginner divers. The site features depths ranging from 15 to 19 metres, with an average depth of 17 metres. Access is by boat only, located 17 kilometres from shore. Divers can expect mild currents, though surge and swell are common, particularly near the wall structure. Visibility varies between 10 and 30 metres, and water temperatures fluctuate from 13 to 17 degrees Celsius throughout the year. A typical dive lasts 50 minutes. Divers should monitor water movement closely to maintain stability and manage buoyancy when navigating the wall.

Towers is a marine dive site located off Santa Cruz Island in the Channel Islands National Park. The topography features a combination of reef, kelp forest, wall, and pinnacle structures. Divers can expect depths ranging from 12 to 30 metres, with an average depth of 21 metres. Access to this site is by boat only, as it is situated 2000 metres from the shore. Conditions vary, with visibility ranging from 3 to 24 metres and moderate currents present. Due to the depth, potential for entanglement, and current, this site is suited for intermediate divers. Air fills and guided tours are available for those planning a visit.

Scorpion Anchorage at Santa Cruz Island offers a diverse underwater environment featuring reef, wreck, and kelp forest topography. Divers can explore depths ranging from 3 to 21 metres, with an average depth of 18 metres. Visibility varies significantly from 5 to 30 metres. The site requires boat access and is suited for intermediate divers due to potential surge, swell, and entanglement risks within the kelp. Water temperatures remain between 13 and 17 degrees Celsius, necessitating thermal protection. Species recorded around this area include California sea lions, harbour seals, horn sharks, Garibaldi, and various nudibranchs such as the Spanish shawl.

Scorpion Cove on Santa Cruz Island is a prominent site within Channel Islands National Park, offering accessible shore entries for divers and snorkellers. The topography consists of extensive kelp forests and sea caves, providing a varied underwater environment. Conditions are generally protected, though divers should be aware of potential hazards including boat traffic, surge, surf, and strong currents. Water temperatures are cold, ranging from 14C to 19C throughout the year, making wetsuits necessary for all activities. The site is well-suited for beginners and offers facilities such as toilets, equipment rental, and guided tours to support visitors.

Punta Arena, located off Santa Cruz Island, features a combination of reef structures and kelp forests. Divers typically explore depths between 14 and 18 metres, with an average depth of 15 metres. The site is accessible by boat and offers mild currents, though surge and swell conditions are common. Visibility ranges from 10 to 30 metres. Water temperatures fluctuate between 13 and 16 degrees Celsius, requiring appropriate thermal protection such as a 7mm wetsuit or drysuit. The site is suitable for beginners and supports night diving. Divers should remain vigilant for boat traffic when surfacing and monitor their ascent closely.

The USS Peacock wreck lies at depths between 18 and 21 metres off Anacapa Island. This site is suited for intermediate divers who can manage moderate currents and unpredictable surge. Visibility typically ranges from 10 to 20 metres, allowing for clear views of the structure. Water temperatures are cool, ranging from 13 to 17 degrees Celsius, necessitating appropriate thermal protection. Access is exclusively by boat, and divers should monitor swell conditions closely before entry. The wreck provides a structural environment that has been colonised by various reef species, offering biological interest alongside the historical remains. Divers should plan for an average bottom time of 40 minutes.