The Ruby E is a decommissioned US Coast Guard cutter resting on a sandy bottom off San Diego. This artificial reef sits at depths between 15 and 26 metres, with an average depth of 23 metres. Divers access the site by boat, approximately 3218 metres from shore. Conditions feature mild currents and visibility ranging from 5 to 18 metres. The wreck offers penetration opportunities, though these require advanced buoyancy control and awareness of entanglement risks. Due to the overhead environment and depth, this site is suited for intermediate divers. Water temperatures remain cold, ranging from 14C to 19C, necessitating a drysuit or a 7mm wetsuit with a hooded vest.

Nosc Tower Wreck is an artificial reef located 1609 metres offshore in the United States. This site is suitable for intermediate divers and requires boat access. The wreck lies at depths ranging from 9 to 18 metres, with an average depth of 14 metres. Divers should expect mild currents and visibility between 5 and 8 metres. Water temperatures fluctuate between 15C and 19C, with a thermocline present that can cause temperatures to drop by 5 to 10 degrees Fahrenheit at depth. Hazards at this location include boat traffic, potential entanglement, sharp structures, and surge. Typical dives at this site last approximately 45 minutes.

Mission Point Park is a shore-entry dive site featuring a combination of natural reef and artificial reef structures. The site is suitable for beginners, with depths ranging from 1 to 9 metres and an average depth of 2 metres. Divers should be aware of moderate currents, surf, and boat traffic in the area. Visibility typically fluctuates between 3 and 7 metres. Water temperatures range from 15C to 21C, though upwelling can cause temperatures to drop significantly, sometimes falling below 13C. Facilities available at the park include parking, toilets, and showers. Night diving is permitted at this location, with typical dives lasting approximately 55 minutes.

Bird Rock is a kelp forest and reef site located off the coast of San Diego, United States. Divers experience an average depth of 18 metres. Access is by boat only, and the site is suitable for beginners with an Open Water certification. Conditions include moderate currents and visibility ranging from 3 to 8 metres. Water temperatures fluctuate between 15 and 19 degrees Celsius, with occasional upwelling bringing colder water. Divers must remain vigilant regarding entanglement risks within the kelp and should keep all equipment streamlined. Monitoring local tide cycles and current patterns is essential for planning a safe dive at this location.

The Ingraham Street Bridge is a purpose-sunk artificial reef located on the Pacific Coast of the United States. The structure sits at depths between 18 and 21 metres, with an average depth of 19 metres. Access is by boat only. Divers should be prepared for moderate currents and variable visibility ranging from 5 to 25 metres. Due to the nature of the wreck, entanglement risks exist, and careful buoyancy control is required. Water temperatures fluctuate between 14 and 20 degrees Celsius, necessitating appropriate thermal protection. Night diving is permitted for those familiar with the site. Typical dive times are approximately 40 minutes.

Mission Point is a sheltered bay-side location in Southern California, offering a calm alternative when ocean conditions are rough. The site features a rocky jetty and seagrass beds, with depths ranging from 2 to 4 metres and an average depth of 2 metres. Entry is via the shore, and the site is suitable for beginners. Visibility varies between 2 and 10 metres, with mild currents. Divers should be aware of boat traffic and potential entanglement hazards. Facilities at the site include parking, toilets, and showers. Night diving is permitted, and typical dives last approximately 65 minutes. A wetsuit is recommended due to water temperatures ranging from 15 to 22 degrees Celsius.

Mission Bay Jetty offers a combination of natural reef and artificial reef structures suitable for both diving and snorkelling. The site is accessible via a shore entry and is well-suited for beginners. Divers and snorkellers can expect depths ranging from 6 to 12 metres, with an average depth of 9 metres. Conditions include mild currents and visibility typically around 5 metres. Water temperatures fluctuate between 15C and 21C throughout the year. Night diving is permitted at this location. Hazards to be aware of include boat traffic, potential entanglement, low visibility, and surf. Parking facilities are available for visitors.

Mission Bay Jetty South offers a diverse underwater environment featuring a mix of reef, artificial reef, kelp forest, and seagrass habitats. This shore entry site is suitable for beginners, with depths ranging from 6 to 12 metres and an average depth of 7 metres. Divers typically spend 45 minutes exploring the area. Conditions include mild currents and visibility between 3 and 6 metres. Water temperatures fluctuate throughout the year, ranging from 15C in the winter to 20C in late summer. Hazards to be aware of include boat traffic, potential entanglement, surf, and surge.