Quinebaug Lake State Park, Danielson, Connecticut Quinebaug Lake State Park covers 181 acres in Killingly, Connecticut, and offers opportunities for fishing and non-motorized boating on Wauregan Reservoir. The park features two primary hiking trails with different options depending on your preference. The Quinebaug Lake Loop is an easy 1.9-mile loop hike that takes approximately 36 minutes to complete. The trail is well-established, easy to follow, and fairly level with only occasional wet areas. Multiple clearings along the water’s edge, particularly on the western side, feature fire pits, benches, and rope swings. For those seeking a longer experience, the Quinebaug River Trail is a 6.4-mile out-and-back route generally considered easy that takes an average of 2 hours to complete. Highlights include paved paths and great views. While paddling or hiking, you may spot herons, eagles, and other birds. The lake’s waters are noted for their exceptional clarity.