What retirement? In light of that cavalier attitude towards saving for when we can no longer can get out the door, we decided to join a local gym today, as we hiked off a mountain with our packs on. We train for the Sierra, we train for the Grand Canyon , we train to keep on keeping on, which, as all well know , gets harder with age. Someday trails will be unattainable physically; we want to push that away as long as possible.