We'd learn that the sea bed is very rocky and I later read that we were far enough south for coral. It made for tricky fishing, at times. I'm sure the seabed is quite littered with old line and lures. Also, I note that the focus is a bit off with this pic - It might be camera shake from the boat's vibration, but I suspect that it's because I was still learning how to actually focus on infinity with a new lens that is oddly marked.
On the way back, I discovered that my hands had burned wherever the skin was exposed. Multiple applications of SPF30 aren't enough when you're fishing for hours under 32°C weather and clear skies! I had worn a wide-rimmed hat and dressed in long pants and wore both a shirt and a pair of stocking-like things for my fore-arms that I'd borrowed from my mother-in-law, and frankly felt a bit silly but seeing the results I'm very glad I took the effort. In Hosoda-san's blog it's apparent that many other clients felt the same way, going to some length to hide from the sun; others, however, wore t-shirts!
Hosoda-san, who runs the charter, maintains a blog, and for those who can read Japanese the link is here. I've stolen some of his photos:
Immature poets imitate mature poets steal bad poets deface what they take and good poets make it into something better or at least something different. The good poet welds his theft into a whole of feeling which is unique utterly different than that from which it is torn the bad poet throws it into something which has no cohesion. A good poet will usually borrow from authors remote in time or alien in language or diverse in interest.
—T.S. Eliot