Children ages 6-8 years will learn to rock climb in a 12-week class on Mondays, September 22–December 15 from 4:30-5:30pm at the Leventhal-Sidman Jewish Community Center (333 Nahanton Street) in Newton.  Students will learn how to put on a harness, tie knots, and become comfortable on the JCC’s rock wall.  Cost is $350. Class is also offered as a 9-week session on Thursdays, October 2–December 18 from 3:45-4:45pm for $260. Open to the entire community. Register at www.bostonjcc.org/register or contact 617-558-6480 for more information.