Hyde's Quarry is a freshwater site featuring artificial reef structures and wrecks. Divers access the water from the shore to explore depths ranging from 1 to 24 metres, with an average depth of 15 metres. Visibility typically spans 5 to 9 metres. The site presents hazards including cold water, entanglement risks, and overhead environments within the wrecks. A thermocline is present at 15 to 20 feet deep during August, and bottom temperatures can reach 5 to 6 degrees Celsius. Facilities available at the location include changing rooms, air fills, parking, and guided tours. Night diving is permitted at this site.

Sinsheim Cove, located within Codorus State Park, serves as a designated area for underwater exploration. This freshwater site features submerged tree stumps and old foundations that create an artificial reef environment. Divers and snorkellers access the water from the shore. Conditions at the site include mild currents and visibility ranging from three metres upwards. Due to the presence of submerged structures, divers should be aware of potential entanglement risks and overhead environments. The site is suited for intermediate divers and offers a range of facilities including parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a cafe, first aid, a dive shop, boat charter, guided tours, and gear storage.