Sissy Beach at Lake Tenkiller offers a unique freshwater snorkeling experience defined by its dramatic underwater wall topography. The site features vertical rock faces that drop off into deeper water, creating interesting geological formations along the shoreline. Snorkelers should be aware that conditions vary, with visibility typically ranging between 1 and 5 metres. Due to the depth and the presence of boat traffic, this site is best suited for intermediate snorkelers. Access is via a shore entry. A cafe is available on-site for visitors. Divers and snorkelers must remain vigilant regarding boat traffic and the potential for low visibility.

Brooken Cove is a freshwater dive site located near the dam at Lake Tenkiller. The underwater topography is characterised by sandstone rocks and coarse gravel, which provide structure throughout the area. Divers can expect visibility ranging from 3 to 12 metres, though conditions vary. Entry is via the shore, making this site accessible for beginners. Facilities available at the site include parking, toilets, and showers. The cove is also suitable for snorkelling, with a rating of 3 out of 5.

Dam Site South in Lake Tenkiller offers a rugged underwater landscape defined by massive boulders and a continuation of the wooded shoreline. These large rocks form a labyrinthine environment suitable for intermediate divers and snorkellers. Access is via the shore, with facilities including parking, toilets, showers, and changing rooms available. Conditions vary, with visibility ranging from 3 to 12 metres. Divers should be aware of thermoclines, which influence both temperature and visibility. Seasonal water temperatures fluctuate between 6°C and 32°C. Hazards at this site include boat traffic, cold water, potential entanglement, and low visibility. Proper planning for depth and decompression is necessary due to the site's characteristics.

Porum Landing at Lake Tenkiller offers a freshwater diving experience characterised by variable visibility ranging from 2 to 25 metres. The site features a shoreline composed of sandy stretches and rocky outcroppings. Divers and snorkellers can access the water directly from the shore. The site is suitable for beginners, with typical dives lasting around 60 minutes. Facilities available at the landing include parking, toilets, showers, and a rinse station. Divers should remain aware of boat traffic in the area. As a freshwater environment, the site provides a distinct underwater topography for those exploring the lake.

Hummingbird Beach at Lake Tenkiller provides a shallow, accessible environment for snorkelers. The site features a mix of reef and seagrass habitats, with depths ranging from 1 to 7 metres and an average depth of 3 metres. Entry is via the shore, making it suitable for beginners. Visibility is variable, typically between 1 and 3 metres. Water temperatures fluctuate significantly, reaching up to 28°C in summer and dropping to 15.6°C in cooler months, necessitating appropriate thermal protection. Facilities at the site include parking, toilets, showers, changing rooms, and a rinse station. Guided tours and a dive shop are also available for those requiring additional support.