Now that's funny because today I saw a resealable plastic coffee can (Maxwell House) tied to a tree limb on an island in the main creek - wonder of that's what it was. I'm not ready to invest in anything with GPS, right now - I drowned my newer camera week before last and have been using my old camera 'til the waterproof one I ordered arrives. It's supposed to be here tomorrow. Geocaching could be interesting here because there are a lot of little channels and backwaters like this around the edges of the harbor, but besides not having GPS I just wouldn't have the time right now - I have only two or three hours early each morning in which I have to get shopping done or go on these outings or whatever with no days off.