There's an island there where Errol Flynn used to live in the time when dragging bananas on rafts to the boat, singing all along, was still a big deal. Flynn tipped the people they would do much better using those bamboo rafts to schlep tourists. They still do. There's a ferry to Flynn island as well. Warning: You may not food and drink along. Bet there's an expensive restaurant on that island...
Some of the sights on that river tour. It's well worth it.
We were taken up there by a vintage taxi cab, which took like half an hour. The door, and window, on my side wouldn't open. (Me and my claustrophobia.) The exhaust leaked and to combat the smell, the driver burned some super-powerful incense, resulting in an even worse stench. Much worse. And didn't do much against carbon monoxide, either. (Me and my headache.) When we were getting underway, I made the mistake of feeling for a rock. Nearly broke my wrist, the stream was so powerful. But the trip was nice.