Mont Chateau Shoreline in the Pennsylvania Highlands features a steep, freshwater topography defined by submerged rock ledges. Snorkelers can navigate these drop-offs, which provide structural changes in the lake bed. The site is suitable for intermediate snorkelers, with entry possible from both shore and boat. Conditions are generally characterized by mild currents. Divers and snorkelers should remain aware of potential hazards, including boat traffic, deep water, and the risk of entanglement. As a freshwater environment, the site offers a unique perspective on the local lake bed structure near the former state park location.

Rock Garden is a freshwater reef site located where the Cheat River flows into Cheat Lake. The site features a rocky substrate and is situated in a transition zone that offers different water conditions compared to the main reservoir. Snorkelling here is suitable for intermediate participants, with depths ranging from 1 to 2 metres and an average depth of 1 metre. Access is by boat only. Divers and snorkellers should be aware of hazards including boat traffic, low visibility, and strong currents. The habitat supports various temperate freshwater fish and invertebrates typical of the region.

Arrowhead Cove is an artificial reef site located at the northern end of Deep Creek Lake in the Pennsylvania Highlands. This freshwater location offers a shallow dive experience with depths ranging from 1 to 8 metres, averaging 4 metres. Entry is via the shore, and the site is suitable for beginners. Divers should expect mild currents and visibility between 1 and 5 metres. Seasonal temperature variations are typical, with summer water temperatures reaching approximately 24°C, though thermoclines are common. Winter diving is possible with the use of drysuits. Parking facilities are available at the site, and a typical dive lasts around 45 minutes.