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 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.

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.

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.

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.

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.

Starfish Cove is a rocky shoreline located north of Yaquina Head in the United States. This site is suitable for intermediate snorkelers, offering shallow-water exploration at depths ranging from 1 to 3 metres, with an average depth of 2 metres. Access is via the shore, and the site features mild currents. Snorkelers should be prepared for cold water temperatures, which typically range between 10°C and 13°C throughout the year. The area is subject to surf conditions, and parking is available for visitors. A typical session at this site lasts approximately 45 minutes.

Lost Creek Beach is a quiet stretch of coastline near South Beach, United States, primarily utilised for beachcombing and rockhounding. Snorkelling is possible around scattered rocks during very calm minus tides. The site features a shore entry and is suitable for beginners, though conditions are generally mild. Water temperatures remain cool throughout the year, ranging from 10C to 13C. Species recorded around this area include California Sea Lions, Harbor Seals, various nudibranchs such as Hermissenda and Monterey Dorid, as well as Rock Crabs and Ochre Sea Stars. Facilities at the site include parking and toilets.