The Apollo Space missions were designed to end in the ocean (which is why astronauts spent so much time practicing getting out of a capsule in swimming pools) but what if they missed the ocean entirely? For this contingency, NASA sent the astronauts to the jungle and the desert for survival training.
The Apollo mission astronauts attended the Panama Jungle Survival School on Albrook Air Force Base in the Panama Canal Zone. Astronauts including Alfred Worden, Harrison Schmitt and Ronald Evans were present at the school in 1968 learning survival techniques from a local tribesman and US Special Forces.