Ziolkouski Beach, located at the mouth of the Umpqua River on the Southern Oregon Coast, features a unique triangular jetty formation. This structure creates a calm, saltwater lake effect, providing a sheltered environment for snorkelling. The rocky rip-rap along the shore serves as a habitat for tide pool life. Entry is from the shore, and the site is suitable for beginners. Conditions include mild currents, though visitors should be aware of potential surf, boat traffic, and cold water temperatures. Water temperatures range from 10C to 14C throughout the year, making a wetsuit necessary for safety and comfort. Facilities at the site include parking, toilets, and showers.

Umpqua South Jetty on the Southern Oregon Coast consists of both natural reef and artificial reef structures. This site is suitable for advanced divers due to strong currents, surf, and potential rip currents. Visibility varies significantly, ranging from 0 to 15 metres, and water temperatures remain consistently cool between 9 and 11C throughout the year. Divers and snorkellers should plan their entry for high slack tide to mitigate the influence of the river current and improve visibility. Parking is available at the site. Typical dives last approximately 45 minutes, with an average depth of 5 metres and a maximum depth of 10 metres.

Crab Dock is a reef and artificial reef site located in the Umpqua River estuary on the Southern Oregon Coast. Divers and snorkellers can explore the pilings and the base of the rocky jetty, situated approximately 75 metres from shore. The site offers both shore and boat access, with entry typically from a small sandy beach west of the public crabbing pier. Depths range from 3 to 18 metres, with an average of 8 metres. Conditions are variable, with visibility reaching up to 15 metres and mild currents. Hazards include boat traffic, entanglement risks, sea urchins, and surf. The site is suitable for intermediate-level divers.

Windy Cove is a shore entry site located at Windy Cove County Park on the Southern Oregon Coast. The site features a combination of natural reef and artificial reef structures, including a vintage timber dock and nearby jetty rocks. Divers and snorkellers can explore these features at depths ranging from 0 to 6 metres, with an average depth of 5 metres. Conditions are variable, with visibility reaching up to 15 metres and moderate currents. Hazards include surf, surge, and potential for low visibility. The site is suitable for beginners and offers facilities including parking, toilets, showers, changing rooms, a rinse station, a cafe, a dive shop, and boat charter services.

Tahkenitch Landing is a coastal dune lake featuring complex shorelines and a sandy bottom. Snorkelling is primarily conducted near the landing area, where depths range from 2 to 7 metres with an average of 3 metres. The site is suitable for beginners and offers shore access. Water temperatures fluctuate between 10C and 14C throughout the year. Divers and snorkellers should be aware of potential hazards including entanglement and low visibility. Toilets are available at the site for visitor use.

Fossil Point on the Southern Oregon Coast is a shore-entry site located inside the bay near Charleston. The topography consists of reef and seagrass habitats, notable for its fossil-bearing sandstone. Snorkelling conditions are generally suitable for beginners, though the site is subject to moderate currents and cold water temperatures ranging from 10C to 13C. Depths typically range between 1m and 10m, with an average of 5m. Divers and snorkellers should be aware of potential hazards including cold water, entanglement, and low visibility. Parking is available at the site, which typically supports 45-minute sessions.

Siltcoos Lake at the Westlake entry offers a freshwater diving experience characterised by thick lily pad forests and submerged logs. The site features an artificial reef structure, though visibility is frequently limited by dense aquatic vegetation. Divers should be prepared for cold water conditions, with temperatures averaging 11C year-round and thermoclines present. The site is accessed via a shore entry near the Westlake boat ramp. Due to the vegetation density and environmental conditions, this location is suited for intermediate divers. Snorkelling is not recommended here. Facilities available at the site include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a cafe, first aid, a dive shop, and boat charter services.

Yoakam Point on the Southern Oregon Coast features sandstone formations that extend into the sea like fingers. This site consists of reefs and walls with pocket beaches that allow for tide pool snorkelling during high tide. Divers and snorkellers can explore various rock fissures within the area. Conditions are challenging, with water temperatures ranging from 10C to 13C and moderate currents. The site is intended for intermediate snorkellers due to hazards including surf, surge, strong currents, rip currents, and low visibility. Parking is available for visitors. Given the environmental conditions, this location is rated 2/5 for snorkelling.