Cobble Beach, situated at the base of the Yaquina Head Lighthouse, is a reef site defined by its distinctive round basalt cobblestones and tide pools. Access is via a shore entry. Conditions at this location vary, and the site is best suited for intermediate snorkelers due to the presence of surf and sharp coral. Water temperatures are cool, ranging from 10C to 14C throughout the year. Snorkelers should exercise caution regarding surge, as the site is most accessible during calm days when wave action is minimal. Facilities available at the site include parking, toilets, showers, and a rinse station.

Quarry Cove at Yaquina Head is an artificial intertidal area formed within a former rock quarry. This site offers shore access for both divers and snorkellers, though conditions are variable with potential surf and surge. Water temperatures remain cool, ranging from 10C to 14C throughout the year. Divers and snorkellers should be prepared for low visibility and the presence of sea urchins. Facilities at the location include parking and toilets, and guided tours are available. Please note that the site is frequently closed to public entry during harbour seal pupping seasons to protect the local wildlife.

Nye Beach The Pier is a local landmark located at the Nye Beach turnaround, consisting of a city drainage structure that functions as an artificial reef. The site is primarily sandy, though the structure provides a hard substrate for small anemones and barnacles in very shallow water. This shore-entry site is suitable for beginners, though it is rated 1/5 for snorkelling. Divers and snorkellers must be aware of significant hazards, including cold water temperatures ranging from 10C to 13C, surf, rip currents, and sea urchins. Parking and a cafe are available nearby for visitor convenience.

Wacoma Dock, located at the end of SE Ferry Slip Road in Newport, offers a sheltered shore entry point for divers and snorkellers. The site features a gently sloping mud and shell bottom, reaching depths between 5 and 8 metres with an average of 6 metres. Conditions are generally suitable for beginners, though divers should remain aware of boat traffic and the potential for strong currents. Typical dives last approximately 30 minutes. Water temperatures remain consistently cool, ranging from 10 to 12 degrees Celsius throughout the year. Parking is available for visitors at this location.

Idaho Flat is a shallow estuarine site near South Beach, United States, characterised by seagrass and muck substrates. This shore-entry location is suitable for beginners, with depths ranging between 1 and 3 metres. Divers should be prepared for moderate currents and variable visibility, which typically fluctuates between 1 and 5 metres. Due to the nature of the environment, potential hazards include entanglement and low visibility. Parking is available for visitors. The site is best suited for those interested in shallow-water exploration within an estuarine setting.

The Fingers is a reef and artificial reef site located in the United States near Nye Beach. The site is defined by five rocky fingers extending into the channel, with the third finger being the most popular due to its length and relative protection from strong currents. Snorkelling here is suitable for intermediate participants, with depths ranging from 3 to 6 metres. Access is via the shore. Conditions are variable, with potential hazards including boat traffic, entanglement, low visibility, strong currents, surf, and surge. Water temperatures are cool, ranging from 10C to 15C throughout the year. Parking and a dive shop are available at the location.

The Oregon Coast Aquarium offers a controlled artificial reef dive experience within a marine environment. Divers can expect a consistent depth of 4 metres throughout the 30-minute dive. The site is accessible via shore entry and is suitable for beginners. Water temperatures remain cold, ranging between 10°C and 13°C year-round. Facilities available on-site include parking, toilets, showers, changing rooms, a rinse station, air fills, and guided tours. Divers should be aware of the overhead environment and the presence of stonefish within the habitat. Visibility is generally recorded at 10 metres.

Otter Rock Marine Reserve is a protected area in the United States featuring shallow rocky reefs and extensive kelp forests. Sheltered by Cape Foulweather, the site offers a relatively stable environment for divers and snorkellers. Depths range from 2 to 18 metres, with an average of 8 metres. Shore access is available, though conditions include cold water, surge, surf, and potential rip currents. Visibility fluctuates between 2 and 12 metres. Due to the consistently cool water temperatures of 9 to 11 degrees Celsius, a wetsuit is required. The site is suitable for beginners, with typical dives lasting around 45 minutes. Facilities include parking and toilets.