Beckman's Cove is a sheltered freshwater site located on the eastern side of Beckman's Peninsula. The topography is defined by dense aquatic weed beds that form underwater forests, providing habitat for various temperate freshwater fish and invertebrates. Divers and snorkellers can expect depths ranging from 2 to 6 metres, with an average of 4 metres. Conditions are generally mild, though visitors should remain aware of boat traffic and potential entanglement hazards within the vegetation. The site is accessible via both shore and boat, and facilities include parking, toilets, showers, and changing rooms. A typical dive lasts 45 minutes, and the site is suitable for intermediate-level divers.

Glendale Bridge in the Pennsylvania Highlands is an artificial reef site featuring a submerged bridge structure and pilings. The site offers depths ranging from 2 to 23 metres, with an average depth of 8 metres. Divers and snorkellers can explore the rocky foundations and bridge remains, which provide habitat for various temperate freshwater fish and invertebrates. Conditions vary, with visibility typically between 3 and 8 metres and mild currents. The site is subject to thermal stratification and significant seasonal temperature fluctuations, ranging from near freezing in winter to 27°C in summer. Hazards include boat traffic, entanglement risks, and cold water. Access is available via both shore and boat.

Discovery Center Beach in the Pennsylvania Highlands offers a shallow freshwater environment suitable for beginners. Divers and snorkellers can expect depths ranging from 1 to 5 metres, with an average depth of 3 metres. Entry is via the shore, and the site typically experiences mild currents and visibility between 5 and 10 metres. Summer water temperatures average around 23°C, though conditions vary significantly in spring. The area is located south of the main state park beach and provides facilities including parking, toilets, and showers. Divers should remain aware of boat traffic in the vicinity. Guided tours are available for those visiting this site.

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.