I sat watching these two gentlemen in the grounds of Osaka Castle. They had their cameras (and very long lenses) trained on the pond which contained Koi Carp. I'm not sure what they were waiting for but they were there for a very long time and it struck me that it's like a less distructive way of fishing - you still capture the fish but it doesn't get hurt. What a wonderful way to spend a day...chatting to a friend, eating a packed lunch together and waiting for that fishy moment.