I took Jenna 'letterboxing', a singularly English past-time that has taken off in a big(ger) way in America. Basically you follow clues to find hidden boxes that contain rubber stamps. You take an imprint, and leave your name in the letterbox's log book. Most of the ones in the UK are on Dartmoor under rocks. They're spread out all over the US, most of them in old dead trees, though we did find one that was hidden inside a fake book in a library. Right after I took this photo Jenna spotted a giant green snake right behind me, screamed, and ran for it. We later discovered it's one of the most harmless species of snake in the country, and rarely bites, even if handled.