There's a log bridge near one of the local trails that crosses a creek. I'd say it's anywhere from 4-6feet above the water and probably 15-20 feet long.
There's a skills practice area around the trails as well, where they have a log laid in the ground and a little narrow ramp that lets you ride up on it. This log is probably about 10 feet long. I've successfully rode across it once, fallen it off it several times, and busted my shin with the pedal once during one of the falls. Happily, the fall is not even a foot, but still this training log intimidates me. I can't fathom riding over the creek.
Has anyone successfully negotiated a log bridge where you could really bust your arse if you fell? Do you eventually get to a point where they feel natural and like no big deal? I just don't feel steady on them, and I'm not sure I ever will--especially not to the degree where I'd try to cross the creek.