The Palisades is a boat-access reef and kelp forest site located off Avalon. Divers navigate depths ranging from 11 to 25 metres, with an average depth of 18 metres. Visibility at this site typically spans 10 to 30 metres. While the current is generally mild, conditions can vary, and divers should remain aware of potential surf at the surface. Due to heavy boat traffic in the area, the use of a surface marker buoy is essential before ascending. Water temperatures fluctuate between 15 and 18 degrees Celsius throughout the year, making appropriate thermal protection necessary for comfort.

China Point is a reef dive located off the coast of Two Harbors, Santa Catalina Island. The site features a reef structure that spans depths between 12 and 28 metres, allowing for exploration across varying levels. Divers typically access the site by boat. Conditions include moderate currents that can fluctuate with the tides, and visibility generally ranges from 10 to 30 metres. Water temperatures remain between 14 and 18 degrees Celsius throughout the year, necessitating appropriate thermal protection. While the site is suitable for beginners, divers should coordinate with their boat operator to assess current strength before entry.

Al's (Crazy) Kelp is a kelp forest and reef site located 2000 metres off the coast of Avalon, United States. This boat-accessible dive features a consistent depth of approximately 9 metres. Divers should be prepared for moderate currents and the risk of entanglement within the kelp. Visibility at the site varies significantly, ranging from 5 to 25 metres. Water temperatures fluctuate between 15C and 20C throughout the year. Due to the current and potential for entanglement, this site is suited for intermediate divers. Typical dives last around 45 minutes.

Located off Avalon, Catalina Island, this site features a combination of reef, kelp forest, and wall topography. Divers typically explore depths between 9 and 30 metres, with an average depth of 12 metres. Access is by boat only, as the site is situated 8 kilometres from shore. Conditions include strong currents and visibility ranging from 12 to 18 metres. Water temperatures fluctuate between 14 and 18 degrees Celsius, with potential thermoclines in deeper sections. Hazards include cold water, entanglement risks, strong currents, and surf. Species recorded around this area include California sea lions, Garibaldi, horn sharks, Spanish shawl nudibranchs, California moray eels, and California spiny lobsters.

Ben Weston Point near Two Harbors offers a shore-entry dive featuring a reef and kelp forest environment. The site reaches depths between 20 and 30 metres, with an average depth of 7 metres. Divers can expect moderate currents and visibility ranging from 5 to 10 metres. Water temperatures fluctuate between 14C and 18C throughout the year, necessitating appropriate thermal protection. Entry requires careful navigation of the surf and shore break, which is the most demanding aspect of the dive. This site is suitable for beginners, though divers should monitor local conditions and time their entry to avoid challenging surf sets.

Binnacle Rock is a reef and kelp forest site located 2400 metres off the coast of Avalon. Divers can explore the structure of the reef and kelp at depths ranging from 7 to 13 metres. The site is suitable for beginners, though moderate currents require good buoyancy control. Visibility is variable, typically between 3 and 7 metres, necessitating close buddy contact. Water temperatures range from 15 to 19 degrees Celsius, so thermal protection is recommended. Hazards include boat traffic, surge, and potential entanglement in kelp. Divers should remain vigilant for sea urchins and sharp rocks on the seabed and always listen for surface traffic before ascending.

Sentinel Point is a reef dive site located near Two Harbors on Santa Catalina Island. The site is accessed by boat and is suitable for beginner divers. Depths range from 9 to 17 metres, with an average depth of 13 metres. Divers should be aware of boat traffic in the area. Conditions include moderate currents and visibility typically between 5 and 9 metres. Water temperatures fluctuate throughout the year, ranging from 15C in the winter months to 19C during late summer and autumn. A typical dive at this location lasts approximately 45 minutes.

Church Rock, located off the coast of Avalon, offers a diverse underwater environment featuring a combination of reef, kelp forest, and wall structures. Suitable for beginners, the site ranges in depth from 8 to 23 metres with an average of 15 metres. Divers should expect mild currents, though surge and swell can occur around the reef and wall. Visibility varies between 3 and 15 metres. Access is by boat only, and divers must remain aware of boat traffic at all times. A surface marker buoy is essential for ascents. Water temperatures range from 14 to 18 degrees Celsius, making a 5 mm wetsuit with a hood recommended.