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.

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.

Salta Verde is a reef site located near Avalon on Santa Catalina Island. This site is accessed by boat and is suited for intermediate divers. The average depth is approximately 7 metres, with conditions generally featuring mild currents. Water temperatures fluctuate throughout the year, ranging from 15C in the winter and spring months to 21C in August. Species recorded around this area include California sea lions, Garibaldi, California moray, horn sharks, Spanish shawl nudibranchs, lesser two-spot octopus, leopard sharks, eagle rays, wrasses, California spiny lobster, Atlantic pyrosomes, scorpionfish, three-lined aeolids, and barracuda.

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.

Kelp Forest in Avalon is a shore-entry site featuring a dense kelp forest and reef environment. Divers typically explore depths between 5 and 29 metres, with an average depth of 15 metres. The site is suited for intermediate divers, with mild currents and visibility ranging from 5 to 15 metres. Marine life frequently encountered includes the bright orange Garibaldi and common scorpionfish and wrasses. Divers may also spot California sea lions, horn sharks, California moray, and California spiny lobster. Due to water temperatures between 14 and 18C, a 7mm wetsuit or drysuit is recommended. Facilities at the site include showers, toilets, rinse stations, air fills, and equipment rental.

Avalon Harbor in Avalon, United States, offers a diverse underwater environment featuring reefs, kelp forests, artificial reefs, and wrecks. Divers access the site from the shore for dives typically lasting 50 minutes. Depths range from 20 to 100 metres, with an average of 45 metres. Visibility varies significantly between 20 and 80 metres. Water temperatures range from 12C to 16C, with thermoclines consistently present at approximately 15 metres, causing a temperature drop of 3 to 6 degrees. Hazards include boat traffic, cold water, deep conditions, entanglement risks, jellyfish, low visibility, overhead environments, rip currents, sea urchins, and surge. Facilities include air fills, showers, toilets, changing rooms, rinse stations, dive shops, guided tours, and gear storage.

Casino Point Dive Park in Avalon is a protected marine area featuring a diverse underwater landscape of reefs, kelp forests, and artificial structures. Divers can explore depths ranging from 4 to 32 metres, with a thermocline typically present at 40 feet. The site is accessible via a shore entry and is suitable for beginners, though divers should be aware of mild currents and occasional surge. Visibility generally fluctuates between 10 and 30 metres. Facilities at the park include toilets, showers, rinse stations, and equipment rental services. Night diving is permitted, and the site is well-supported by local dive shops offering air fills and guided tours.

The Valiant Wreck is a 75-foot luxury yacht that sank in 1930. Resting in Avalon, the site features depths ranging from 27 to 30 metres, with the shallow side at 27 metres and the deeper side at 30 metres. This wreck dive is suited for intermediate divers due to the overhead environment and potential boat traffic. Divers can access the site by boat or shore, though an Avalon Harbor Permit is required prior to diving. Conditions typically include mild currents and visibility between 10 and 20 metres. Water temperatures fluctuate between 14C and 18C throughout the year.