Eel Cove is a marine dive site located in Two Harbors, Santa Catalina Island. The site features a consistent depth of approximately 12 metres. Conditions at this location vary, with water temperatures ranging from 15C in the winter and spring months to 20C during the late summer and early autumn. As a marine environment, the site is accessible for diving activities. Divers should be prepared for variable conditions typical of the Santa Catalina Island region. The site has been documented in dive records dating back to 2012.

Paradise Cove in Two Harbors features a deep reef and kelp forest structure ranging from 16 to 37 metres. This boat-only site is suited for intermediate divers who possess strong buoyancy control and navigation skills. Visibility typically ranges between 5 and 10 metres, often affected by thermoclines. Divers should be prepared for mild to strong currents and potential entanglement risks within the kelp. Due to the significant depth and variable conditions, a drysuit or thick wetsuit is recommended. Species recorded around this area include California sea lions, Garibaldi, horn sharks, Spanish shawls, California moray, and California spiny lobster.

Yellowtail Point in Two Harbors is a boat-access site featuring a reef and kelp forest. Divers typically explore depths between 10 and 30 metres, with an average depth of 15 metres. Visibility generally ranges from 10 to 20 metres. The site is suitable for intermediate divers, though conditions require monitoring due to potential surge and swell. A mild current is common. Given the water temperatures of 14 to 17 degrees Celsius, appropriate thermal protection is recommended. Boat access is required, and divers should check local weather forecasts for swell activity before departure to ensure safe conditions for entry and navigation around the reef structure.

Little Gibraltar is a reef and pinnacle site located off the coast of Two Harbors. The site features depths ranging from 11 to 25 metres, with an average depth of 20 metres. Divers can expect visibility between 10 and 30 metres. The area is subject to moderate currents, which require solid buoyancy control and careful navigation around the pinnacle structure. Access is strictly by boat. Due to the presence of boat traffic, divers should remain vigilant during ascents and are advised to use a surface marker buoy. This site is best suited for intermediate divers capable of managing current and surface awareness.

Rock Quarry, located off the coast of Two Harbors, features a combination of reef structures and kelp forests. Divers can explore depths ranging from 8 to 30 metres with visibility typically between 10 and 20 metres. The site is suitable for beginners, though boat entry requires caution due to potential surf and shore break. Underwater, the kelp forest provides vertical structure for local marine life. Divers should maintain good buoyancy control to avoid contact with sharp rocks and sea urchins. Typical dive times are approximately 45 minutes, with mild currents generally expected throughout the area.

Rock Quarry near Two Harbors is a boat-accessible site featuring a combination of reef, artificial reef, and kelp forest habitats. The site reaches depths between 6 and 36 metres, with an average depth of 18 metres. Divers should be prepared for mild currents and potential boat traffic. Visibility typically ranges from 13 to 15 metres, and water temperatures fluctuate between 14 and 18 degrees Celsius throughout the year. Due to the depth and environmental conditions, this site is suited for intermediate divers. Species recorded around this area include California sea lions, Garibaldi, Spanish shawls, horn sharks, California morays, leopard sharks, eagle rays, lesser two-spot octopuses, guitarfish, scorpionfish, California spiny lobsters, Atlantic pyrosomes, wrasses, and egg-yolk jellyfish.

Crane Point, located off the coast of Two Harbors, offers a diverse underwater environment featuring natural reef, kelp forest, and artificial reef structures. Divers typically explore depths between 10 and 15 metres, with an average depth of 12 metres. The site is suitable for beginners, though divers should remain mindful of potential surge and swell conditions during boat entry and exit. Visibility ranges from 10 to 30 metres, providing clear views of the layered kelp forest. Due to the presence of kelp, divers should keep their equipment streamlined to avoid entanglement. The site is accessible year-round and supports night diving, with mild currents generally prevailing.

Fraggle Rock is a diverse marine site near Two Harbors, Santa Catalina Island, featuring a combination of reef, kelp forest, and pinnacle topography. This site is accessible only by boat and is suitable for beginners, with depths ranging from 10 to 65 metres. Conditions are generally mild, though divers should be aware of potential surf. Visibility is excellent, typically spanning 25 to 80 metres. Species recorded around this area include California sea lions, Garibaldi, California moray, horn sharks, Spanish shawl nudibranchs, and California spiny lobsters. Water temperatures fluctuate between 12C and 17C throughout the year.