I like exploring places you can't easily get to otherwise - best trips are those that have some surf along the way, there's always something cool getting to the surf via the water rather than from the land. I had a preconception that touring/exploring would get pretty lame after the first couple of trips, but I you see something different every time.
My last trip - I came across this - looks like it had been there a month, but I was talking to the guy who was still on board and he said he'd sunk just 1 hour before I got there - was out at sea and only just made it back into the estuary.