Battle Run Beach serves as the primary shore-access point for Summersville Lake, offering a 1,000-foot sandy beach. The site features a gentle sandy slope, making it suitable for beginners to practice in shallow, calm water. Snorkelling depths typically range from 1 to 5 metres, with an average of 3 metres. Visibility generally spans 6 to 12 metres. During summer, surface temperatures range from 20 to 27 degrees Celsius, though thermoclines and colder bottom layers are common due to the lake's depth. The area experiences mild currents and requires caution due to boat traffic. Facilities available at the site include parking, toilets, and showers.

Long Point is a freshwater dive and snorkel site located in Summersville Lake. The topography consists of a reef and wall structure, offering a varied underwater landscape. Divers and snorkellers can expect depths ranging from 6 to 12 metres, with an average depth of 10 metres. Conditions are generally mild, with visibility typically between 6 and 12 metres. Access to this site requires a boat. The location is suitable for beginners and supports a range of activities, with typical dive times lasting around 45 minutes. On-site facilities include air fills, equipment rental, a dive shop, boat charters, parking, and guided tours.

Long Point Cliff is a signature site at Summersville Lake, defined by its towering sandstone cliffs and a massive pyramid-shaped rock formation. Divers can explore the underwater topography around these structures, which reach depths of approximately 12 metres. The site offers visibility ranging from 6 to 14 metres, making it a popular location for both diving and snorkelling. Access is available via both shore and boat entries. Conditions are generally mild, though divers should remain aware of potential boat traffic and the risk of entanglement. Typical dives at this location last around 50 minutes. Facilities including parking, air fills, equipment rental, and boat charters are available nearby.

The Overlook is a freshwater dive site located on the south side of a protected cove in Summersville Lake. The topography features a diverse underwater landscape of boulders and ledges, with a large tree trunk leaning against the cliff marking the location. Divers can expect depths ranging from 5 to 18 metres. Visibility at this site typically varies between 6 and 13 metres, with mild currents. Summer water temperatures range from 25.5 to 29.5 degrees Celsius. The site is accessible only by boat, and divers should remain aware of boat traffic in the area. The habitat supports various temperate freshwater fish and invertebrates.

Bubble's Cave is a freshwater site located along the main cliff line of Summersville Lake. This site features an underwater undercut that forms a large air pocket approximately 8 metres below the surface. Divers and snorkellers can explore the ledge and the bubble effect created by the cave structure. The site reaches depths between 8 and 18 metres, with visibility typically ranging from 6 to 14 metres. Access to this site requires a boat. Due to the overhead environment and depth, this location is suited for advanced divers. Facilities including air fills, equipment rental, guided tours, and boat charters are available nearby.

Salmon Run at Summersville Lake is a freshwater site featuring a drop-off and artificial reef structures. Accessible via a rocky shore entry near the Route 19 bridge, the site reaches depths of up to 30 metres. Visibility typically ranges between 6 and 14 metres, though divers and snorkellers should be aware of potential thermoclines and cold bottom layers. The area is subject to boat traffic, requiring caution during water activities. The habitat supports various temperate freshwater fish and invertebrates typical of the region. Facilities at the site include parking, a dive shop, and boat charter services, making it a convenient location for beginners.

Pirate's Cove in Summersville Lake is a freshwater site distinguished by a 30-foot waterfall that cascades directly into the water. The site offers depths ranging from 2 to 18 metres and is accessible by both shore and boat. Visibility is generally high, between 20 and 45 metres, though divers and snorkellers should be aware of thermoclines and cold bottom layers. Surface temperatures during summer months typically reach 20 to 26 degrees Celsius. The area supports a variety of temperate freshwater fish and invertebrates. Due to the presence of boat traffic and significant depth, visitors should exercise caution while exploring this beginner-friendly location.