Escondido, locally known as Esco, is a shallow reef and seagrass site located within Channel Islands National Park. Divers typically experience depths ranging from 3 to 4 metres, making it a suitable location for beginners. Access is via a shore entry, with mild currents generally present. Visibility at the site varies between 3 and 10 metres, and water temperatures fluctuate from 15C in the winter to 21C during late summer. Divers should be aware of potential hazards including low visibility, surf, and sharp coral. Typical dives at this location last approximately 40 minutes.

Nicholas Canyon is a shore-accessible reef and kelp forest site located in LA County. Divers navigate depths between 6 and 12 metres, with visibility typically ranging from 5 to 10 metres. The site features moderate currents and requires a shore entry, where divers must exercise caution due to surf and shore break. Marine life recorded at the site includes Spanish Shawl, California Spiny Lobster, Ochre Sea Star, and various crab and snail species. Facilities including parking and showers are available on site. This location is suited for intermediate divers who are comfortable managing shore entries through surf conditions.

Leo Carrillo offers diverse underwater topography including reef, kelp forest, wall, pinnacle, and canyon structures. Depths range from 5 to 21 metres, with an average of 8 metres. Divers encounter moderate currents and visibility between 4 and 12 metres. The site is suitable for intermediate divers and supports night diving. Shore entry requires caution due to surf and shore break conditions. Facilities available on-site include parking, toilets, and showers. Divers should remain aware of kelp to avoid entanglement and wear appropriate footwear to protect against sharp rocks.

Topanga Beach in Channel Islands National Park is a shallow reef site accessible via shore entry. Divers typically experience depths between 1 and 3 metres, with an average of 2 metres. Conditions vary, with visibility ranging from 3 to 15 metres and moderate currents present. The site is suitable for intermediate divers, with typical dives lasting around 45 minutes. Night diving is permitted. Marine life recorded at this site includes common sea hares and very common snails. Divers may also encounter uncommon California spiny lobsters, various crabs, and sea stars. Hazards at this location include rip currents, sharp coral, and stonefish. Facilities available include parking, toilets, and showers.

The Star of Scotland is a shipwreck located 3,200 metres off the coast of Santa Catalina Island, serving as an artificial reef. Resting at depths between 21 and 26 metres, the site is accessible exclusively by boat. Divers should expect mild currents and visibility ranging from 3 to 12 metres. Due to the nature of the wreckage, there is a risk of entanglement, requiring careful buoyancy control and awareness when navigating the structure. Given the variable visibility, carrying a torch is recommended to assist with navigation and buddy communication. This site is suited for intermediate divers who are comfortable with wreck exploration in temperate marine conditions.

In2Deep at Santa Catalina Island offers a varied underwater landscape featuring a mix of reef, kelp forest, and pinnacle terrain. Divers can explore depths ranging from 3 to 21 metres, with an average depth of 10 metres. This site is suited for intermediate divers due to moderate currents and challenging shore entry conditions, including surf, shore breaks, and rip currents. Visibility typically ranges from 3 to 9 metres, requiring solid navigation skills. Water temperatures fluctuate between 14C and 19C throughout the year, necessitating appropriate thermal protection. Divers should exercise caution regarding surge and swell, and wear protective footwear to navigate the rocky shoreline safely.

Dockweiler Beach Wall is a shore-entry dive site located at Santa Catalina Island. The topography consists of a reef and kelp forest environment. Divers can expect depths ranging from 5 to 12 metres, with an average depth of 11 metres. Conditions vary, with visibility typically between 3 and 10 metres and mild currents. The site is suitable for beginners, with typical dive times around 40 minutes. Water temperatures fluctuate throughout the year, ranging from 15C to 19C. Facilities available at the site include parking, toilets, showers, and a rinse station. Divers should be aware of potential hazards, including rip currents and sharks.

Redondo Breakwater is a shore-accessible artificial reef located off the coast of Santa Catalina Island. The site features depths ranging from 8 to 22 metres, with an average depth of 18 metres. Conditions are generally manageable for beginners, with mild currents and visibility typically between 5 and 15 metres. Divers should exercise caution regarding surge near the structure and remain vigilant for boat traffic when entering or exiting the water. Facilities including parking, toilets, and showers are available on site. A typical dive duration is approximately 40 minutes, and water temperatures range from 15 to 18 degrees Celsius throughout the year.