Submarine Rock, located within Ecola State Park, is a shore-entry site featuring a large offshore monolith. This structure creates a semi-sheltered lee side, providing a base for a rocky reef and dense kelp forest. Divers should be prepared for water temperatures ranging from 9C to 15C throughout the year. The site is suited for intermediate divers due to potential hazards including surf, rip currents, and entanglement risks. Facilities at the location include parking, toilets, showers, changing rooms, and a rinse station. Guided tours and a dive shop are available to support visitors exploring this cold-water environment.

Bird Rocks, located at the northernmost point of Cannon Beach, is a reef site suited for advanced divers due to challenging conditions. The site is accessed from the shore and is subject to strong currents, surge, and surf. Visibility typically ranges from 5 to 15 metres, and water temperatures fluctuate between 9C and 15C throughout the year. Given the exposed nature of the point, snorkeling is only feasible during extreme low tides or exceptionally calm sea states. Divers should be prepared for cold water and potential rip currents. Parking is available near the site.

Haystack Rock is a prominent basalt formation featuring submerged ledges and tide pools. Snorkelling is best conducted during high slack tide along the western face of the rock. The site reaches depths of up to 45 metres, though conditions are variable. Water temperatures range from 9C to 14C, and the environment is characterised by strong currents, surf, and rip currents. Due to the cold water and challenging conditions, this site is suited for intermediate snorkellers. Shore access is available, with parking and toilets provided near the site. Guided tours are also available for those navigating the area.

The Cove is a rocky reef site located three miles south of Gearhart. The topography consists of basalt boulders and tide pools, offering a shore entry for snorkelers. Depths range from 2 to 15 metres, with an average of 8 metres. Conditions are variable, with visibility typically between 5 and 15 metres depending on swell. Due to the presence of surf and surge, this site is suited for advanced snorkelers. Water temperatures fluctuate between 8C and 15C throughout the year. Facilities at the site include parking, toilets, and showers. Typical snorkel sessions last approximately 30 minutes.

Painted Rock Beach is a shore-entry site featuring small rocky clusters that can be explored with a mask during flat ocean conditions. The site is shallow, with depths ranging from 1 to 5 metres and an average of 3 metres. Snorkellers may encounter common species such as sea nettles, ochre sea stars, rock crabs, and various snails. Less frequently, skates, Pacific lion's mane jellyfish, common moon jellyfish, opalescent inshore squid, and righteye flounder are recorded. Due to the cold water temperatures and potential for surf, surge, and rip currents, this site is best suited for beginners under calm conditions. Facilities include parking and toilets.

Silver Point Reefs is a shore-entry site located south of the main beach in Cannon Beach. The topography consists of submerged rocky nubs and the prominent Jockey Cap Rock. Divers should expect moderate currents and surge, with visibility typically ranging between 3 and 5 metres. Water temperatures fluctuate between 9C and 15C throughout the year. Due to the presence of rip currents, deep water, and strong surge, this site is suitable only for advanced divers. Snorkelling is generally not recommended here, with a rating of 2 out of 5.

Lion Rock is a distinctive sea stack located off the Oregon Coast near Cannon Beach. This shore-entry site features shallow rocky reefs with depths ranging from 1 to 8 metres, averaging 4 metres. The base of the rock is characterised by deep crevices containing algae and small crustaceans. Conditions vary, with visibility typically between 3 and 10 metres and mild currents. Due to the environment, snorkelers must be aware of hazards including cold water, jellyfish, rip currents, sea urchins, and surf. The site is suitable for beginners, though it is best accessed during calm summer swells. Typical snorkel duration is approximately 30 minutes.

Gearhart Beach features an expansive sandy shoreline where snorkelers may explore shallow troughs located between sandbars. This site is best accessed during rare calm summer days when conditions allow for entry beyond the breakers. The water temperature at this location ranges from 8C to 15C throughout the year, requiring appropriate thermal protection. Due to the presence of surf and cold water, this site is rated for intermediate snorkelers. Shore access is available, with parking and toilet facilities provided nearby. Snorkeling activity is limited by the dynamic coastal environment, and visitors should exercise caution regarding local surf conditions.