Geocaching!
I haven't been out for a couple of months but most of my caching these days involves hiking (with my kids) some indeterminate amount of miles out in the boonies on any given weekend. We closed in on a couple hundred hike-miles this summer (May through early October)... every trail had a cache somewhere on it.
We hit Ancient Lakes in July (it was OMG hot):
I'm also pretty good at hiking an indeterminate amount of miles out to where there is a cache and not bothering to log it...
I believe there were at least three caches on the trails between Source, Snow and Gem lakes out of Alpental. Members of the party I was with signed two of the three and in theory, we left the cache on the small peak directly across from where this photo was taken for a later date:
I signed a logbook at the lake before the OMG amazing Blanca Lake in mid-September (3400' elevation gain over 4 miles in 90 degree weather - oh, the flies!), but neglected to sign the one at the lake itself:
We also did a virtual cache and a earthcache on the north side of Mt. St. Helens a few weeks later:
The last time I drug out my derring-do was in mid-October. I have a cache on an abandoned RR bridge that had been targeted for steel harvesting. There had been some damage reported (beams cut) and my cache, which had been there since early 2005, had been reported missing. I crawled over the side of the decking and replaced the missing cache container. I took a photo of this sign (left by the vandals?) preceding my cache:
Funky - if you haven't found this benchmark, you should. I was out there a couple of weeks ago... the building in the picture is no longer standing, but the marker is still there:
Benchmark on the waterfront