This is part of the jumping dome, an air trampoline that extended a long way. You can see Elder Hartzell up on top with his arms up. He is one of the missionary white shirts.
This is the whole gang, The Hills, The Driskills, The missionaries, and Jim at the very top. Doesn't this climbing hill look like something from Central America?
The missionaries doing "Hurrah for Israel", Pres. Hill looking presidential, and Sis. Hill pointing the way we should go.