Mt. Blue State Park is Maine's largest state park, encompassing approximately 8,000 acres in two sections separated by Webb Lake. A campground in the Webb Beach section has 136 wooded sites a short walk from a sandy beach and picnic area. Visitors can swim, launch and rent boats, and walk on trails near the lake. During summer months, park staff routinely offer canoe trips, walks, and nature programs. A Nature Center features hands-on exhibits and displays.

Across the lake from the Webb Beach section is the centerpiece of the Park, 3,187-foot Mt. Blue, a popular day-hike. Visitors also enjoy walks and picnics on Center Hill (see Trails section). Mountain bikers, equestrians, and ATV riders can experience 25 miles of challenging, multi-use trails. In winter, the park's extensive trail system supports snowmobiling, snowshoeing and cross-country skiing. Families come to sled at Center Hill and skate on an outdoor ice rink at park headquarters.