Rules to play Rock Climbing
Pick a section of wall with lots of holds, and a starting jug at a moderately low height. Start matched on the jug, and see how many other holds you can move to and hold. The end hold must be matched, and held for 2 or 3 seconds. Use a few different colors of sidewalk chalk to see who can tag the most number of additional holds. Each time one is matched and held, it is tagged with the appropriate color chalk, and then is off limits.