Thompson's Lake State Park Professional Review and Guide
"Campsites at Thompson’s Lake are roughly organized into three loops, with five remodeled comfort stations scattered between them. The restrooms include sinks with mirrors, changing tables, and shower stalls with attached changing annexes. Lots are ample in size, but the ground surface tends to be hard and somewhat stony. Cedar, spruce, and white pine provide shade in patches. Both ice and firewood are available for purchase at the park entrance. A short trail links the Emma Treadwell Thacher Center (open 9 a.m. to 5 p.m. yearround; closed Monday) with the campground. This educational facility opened in 2001 and today contains touch tables with fossils, fur, and feathers, a children’s area with books, games, and puzzles, native plant gardens, and a bee hive. Muskrats, turtles, and shorebirds are frequently spotted in the marshy area at the north end of the lake. Five trails, all under a mile in length, offer the chance for a pleasant amble, while a number of more challenging hikes begin atop the Helderberg Escarpment at nearby Thacher State Park and lead down into the Hudson Valley below."