100 Foot Rock features a combination of natural reef and artificial reef structures. Divers can explore depths ranging from 15 to 27 metres, with an average depth of 15 metres. The site is accessible via both shore and boat entries, with on-site parking available for shore divers. Conditions include mild currents and visibility typically between 5 and 10 metres. Due to the presence of sharp coral and geological features, appropriate exposure protection is required to prevent injury. Species recorded around this area include California sea lions, harbour seals, Steller sea lions, various nudibranchs, jellies, and sea stars.

Edmonds Underwater Park, also known as the Bruce Higgins Underwater Trails, is a protected marine preserve located in Puget Sound. This site features an artificial reef and wreck structures accessible via a shallow sandy beach entry. Divers must complete a 100-metre surface swim to reach the descent point. The site reaches depths of up to 15 metres, with an average depth of 10 metres. Conditions vary, with visibility ranging from 1 to 12 metres and the potential for strong currents. Hazards include boat traffic, cold water, entanglement risks, and surf. Facilities available at the site include parking, toilets, showers, changing rooms, and a rinse station.

Edmonds Breakwater is a versatile shore-entry site in Puget Sound featuring an artificial reef and a wreck. Suitable for beginners, the site offers depths between 2 and 12 metres with an average of 10 metres. Divers and snorkellers encounter marine life including harbour seals, California sea lions, and various nudibranchs such as Hermissenda and Monterey dorids. Mottled stars and rock crabs are very common on the structures. Visibility varies significantly from 1 to 12 metres, and conditions can include mild currents and surf. Due to regular vessel movement, divers must remain vigilant regarding boat traffic. The site provides facilities including toilets, showers, and rinse stations.

Edmonds Oil Dock is a shore-accessible artificial reef and wreck site located in Puget Sound. Divers and snorkellers can explore depths ranging from 2 to 21 metres, with an average depth of 21 metres. The site is suitable for intermediate divers due to strong currents and potential entanglement risks within the structure. Visibility typically fluctuates between 5 and 12 metres. Entry is via the shore, where divers should assess the surf break before proceeding. The site features active boat traffic, requiring careful navigation. Facilities at the location include parking, toilets, showers, changing rooms, and a rinse station. Night diving is permitted, and dives typically last around 50 minutes.

Mukilteo T Dock is an artificial reef site in Puget Sound offering shore access for intermediate divers. The site features depths ranging from 3 to 18 metres, with an average depth of 15 metres. Divers can encounter a variety of marine life, including common crabs, which are most frequently seen between May and August. Uncommon sightings include harbour seals, East Pacific red octopuses, ling cod, and hermissenda. Rare encounters may include giant Pacific octopuses, wolf-eels, California sea lions, and various jellyfish species. Conditions involve cool water year-round, necessitating dry suits, with visibility typically between 5 and 15 metres. Hazards include boat traffic, cold water, and low visibility. Night diving is permitted.

Langley Tire Reef is an artificial reef located in Puget Sound, constructed from a collection of tyres. The site sits at depths ranging from 8 to 14 metres, with an average depth of 11 metres. Divers access the reef via a shore entry, making it a practical location for those with Open Water certification. Conditions include moderate currents and visibility typically between 15 and 20 metres, though these can vary. Divers should remain aware of potential entanglement risks associated with the tyre structure and keep gear streamlined. On-site facilities include parking, toilets, and showers to assist with post-dive rinsing.

Cove 2 is a popular shore-entry site in Puget Sound featuring a mix of artificial reef structures and rocky terrain. Divers can explore depths ranging from 1 to 30 metres, with an average depth of 20 metres. The site is accessible via a rocky beach entry with stairs. Marine life frequently encountered includes Egg-yolk Jellyfish, Northern Leopard Dorid, and White-lined Dirona. Less common sightings include East Pacific Red Octopus, Bobtail Squid, Harbor Seal, and various sea slugs. Ling Cod, Grunt Sculpin, and King Crab are also present. Be aware of boat traffic, cold water, and potential entanglement hazards. The site is suitable for beginners, though conditions like visibility and currents vary.

Seacrest Cove 1 is a shore-entry site in Puget Sound featuring a combination of natural reef and artificial reef structures. The site offers shallow depths ranging from 1 to 9 metres, with an average of 6 metres, making it suitable for beginner divers. Conditions are generally forgiving with mild currents and visibility between 6 and 15 metres. Divers should remain vigilant for boat traffic near the surface and be aware of potential entanglement risks when navigating the artificial structures. The site is accessible year-round and supports night diving. On-site facilities include parking, toilets, showers, a cafe, and a dive shop offering guided tours.