Hurst Shoal is a reef dive located off the Pacific Coast near San Francisco. The site sits at depths between 14 and 18 metres and is noted for visibility reaching 30 metres. Divers access the reef by boat, where they encounter moderate currents that require careful positioning. Due to water temperatures ranging from 11 to 13 degrees Celsius, appropriate thermal protection such as a drysuit or thick wetsuit is essential for all divers. The site is suitable for beginners looking to build experience in Pacific Coast conditions. Always confirm boat access arrangements and check locally for current site conditions before planning a dive.

Southeast Farallon is a remote offshore site located 45 kilometres from San Francisco, featuring a complex topography of reefs, walls, and pinnacles. Divers typically explore depths between 14 and 18 metres, with visibility varying from 10 to 24 metres. This is a challenging, boat-only dive characterised by strong currents, significant surge, and cold water temperatures ranging from 11 to 13 degrees Celsius. Due to the exposed location, deep conditions, and presence of sharks, this site is reserved for advanced divers. A drysuit, redundant exposure protection, and a surface marker buoy are required. Briefings with the skipper regarding current timing and abort plans are essential before every descent.

Maintop Island is a reef site located off the Pacific Coast near San Francisco. Divers typically encounter depths between 15 and 18 metres with visibility ranging from 10 to 30 metres. The site is accessible by boat and features mild currents, though conditions vary. Marine life includes California sea lions, Northern elephant seals, Steller sea lions, and harbor seals. Divers may also spot great white sharks, ocean sunfish, various nudibranchs, and jellyfish. Due to water temperatures of 10 to 12 degrees Celsius, a drysuit or 7mm wetsuit with hood and gloves is recommended. Hazards include boat traffic, surge, and sharp rocks; monitor local conditions before entry.