The Adventures of Tintin by Hergé were our favourite childhood books. On a marché sur la Lune (Explorers of the Moon) is one of the most fascinating adventures.
In this sequel to Destination Moon, Tintin and his friends achieve their goal of landing on the moon and Tintin becomes the first man to walk on it (almost 20 years before Neil Armstrong). The crew safely lands back on earth after a few harrowing adventures.
Cordova Bay Beach is the perfect place to watch moonrise (and sunrise, of course). The cache is very close to the beach in a huge driftwood log.