The massive stone bridge arch - the LARGEST marble cave entrance in the east- dominates this spectacular display of ancient Adirondack geology from rock over one billion years old. Self-Guided or Guided Adventure Tours available. Covered Pavilions, Grills, Playground Areas, Trout Pond and Bus Parking. Snack Bar food, pre-ordered box lunches and soft ice cream is available. Beautiful gazebo for weddings also available! Inquire about Special Group Pricing. Family owned for 200 years, a true treasure of the Adirondacks.