Connecting People with Nature Bernheim Arboretum and Research Forest is a privately funded 16,140-acre forest in Clermont, KY. We feature 40+ miles of hiking trails, the world-renowned Forest Giants in a Giant Forest art installation, newly opened 10-acred play area, Playcosystem, a fishing lake, bike trails, a LEED Platinum certified Visitor Center and many other beautiful ways to connect with nature. We are open daily 7 a.m. to sunset. Closed January 1, Thanksgiving Day, and December 25.