Day Island Wall is a technical wall dive located in the United States, dropping from 15 to 33 metres with an average depth of 24 metres. The site is characterised by strong currents throughout the water column and visibility ranging from 10 to 20 metres. Due to the significant depths and potential for nitrogen narcosis, advanced certification is required. Divers must manage decompression limits and remain vigilant for heavy boat traffic at the surface. Shore entries require navigating a surf break, while boat access is also available. Parking is provided at the site, allowing for pre-dive planning. Typical dive times are approximately 45 minutes.

Les Davis Pier is an artificial reef site in the United States offering shore access for divers. The site features a depth range of 4 to 40 metres, with an average depth of 18 metres. Conditions are variable, with visibility ranging from 2 to 10 metres and moderate currents. Divers should be aware of hazards including boat traffic, cold water, entanglement risks, and potential overhead environments. The site is suitable for beginners and supports night diving, with typical dive times around 45 minutes. Facilities available at the location include parking, toilets, a dive shop, and guided tours.

Sunny Side Beach provides a shore-accessible dive featuring a combination of natural reef and artificial reef structures. Suitable for beginners, the site offers depths ranging from 1 to 18 metres with an average of 10 metres. Divers can expect mild currents and visibility between 5 and 15 metres. Marine life commonly observed includes egg-yolk jellyfish, various crabs such as rock crabs and northern kelp crabs, and snails. Less frequently, divers may encounter Pacific lion's mane jellyfish, leather stars, and giant California sea cucumbers. Facilities at the site include parking, toilets, showers, and a rinse station to assist with equipment management.

Saltar's Point Beach is a shore-entry dive site featuring a wreck and artificial reef structure. Located in the United States, the site is suitable for beginner divers, with depths ranging from 1 to 15 metres and an average depth of 13 metres. Divers can expect mild currents and visibility typically between 5 and 10 metres. The site is accessible directly from the beach, with parking available nearby to minimise gear transport. Divers should be aware of potential hazards, including entanglement risks near the wreck structure, variable visibility, and surge that can affect shore entry and exit. Typical dive times are approximately 45 minutes.

Sunrise Beach Park in Puget Sound features a rocky reef and wall system that begins in shallow water. Divers can explore depths ranging from 9 to 32 metres, with an average depth of 14 metres. The site is accessible via both shore and boat entries, located 68 metres from the shore. Conditions are variable, with strong currents and potential for cold water intrusions and thermoclines. Due to the depth and current, this site is suited for intermediate divers. Hazards include boat traffic, down currents, and the risks associated with deep diving. Facilities at the park include parking and toilets.

Redondo Beach is a versatile shore dive featuring both shallow and deep lines, with depths ranging from 2 to 30 metres and an average of 18 metres. The site consists of artificial and natural reef structures that support diverse marine life. Divers frequently encounter East Pacific Red Octopus and White-lined Dirona, while rarer sightings include the Giant Pacific Octopus, Bluntnose Sixgill Shark, and Harbor Seal. Other species recorded here include various nudibranchs, Kelp Pipefish, and Scorpionfish. Entry is via stairs leading to a sandy beach, followed by a short swim. Conditions include cold water temperatures between 9 and 12 degrees Celsius, moderate currents, and visibility ranging from 5 to 20 metres.

Saltwater State Park features Washington's only state-managed underwater artificial reef. The site consists of a reef and kelp forest environment accessible via a sandy beach entry. Divers should be prepared for a significant surface swim of approximately 274 metres to reach the main reef structure. Depths at this location range from 15 to 20 metres, with an average depth of 18 metres. Conditions include mild currents and visibility ranging from 5 to 15 metres. Due to the cold water, potential for low visibility, and currents, this site is best suited for intermediate divers. Facilities available at the park include parking, toilets, showers, a rinse station, and a cafe.

Three Tree Point in Puget Sound offers a diverse underwater environment featuring a sandy bottom interspersed with artificial reef structures and seagrass beds. Divers can explore depths ranging from 2 to 29 metres, with an average depth of 18 metres. The site is accessible via a shore entry and is suitable for beginners, though divers should be aware of cold water, boat traffic, and potential currents. Marine life is abundant, with very common sightings of East Pacific Red Octopus and various shrimp. Other frequent residents include White-lined Dirona, Hermissenda, Lumpfish, and the Monterey Dorid. Night diving is a popular activity here, with typical dives lasting around 70 minutes.