Valid for two "Learn the Ropes" classes. The class covers knot-tying, proper harness fit and is the perfect intro to the climbing world. It can be taken alone or with a friend! Classes offered every day by appointment. Brooklyn Boulders is New York City's largest climbing gym, with 22,000 square feet of climbable terrain; located at 575 Degraw Street. www.brooklynboulders.com