HOLDERNESS — Learn about geography and then do some rock climbing at a Squam Lakes Association (SLA) program Saturday.

SLA Conservation Corps’ Alex Reiber will present an introduction to basic geologic concepts and terminology.

Afterward, participants will head over to the Fisher Family Barn to take a turn on the rock-climbing wall. (Dress warmly as the barn isn’t heated, and bring sneakers.) Children must be accompanied by an adult. To register, visit squamlakes.org oro call 968-7336.