While this looks like a river, it's known as a strand. It's a widening of the swamp along a section of the loop road inside Big Cypress National Preserve.
I think it would be impressive to kayak here, although I would not go without a guide. The swamp is endless, the land is flat, and the Cypress trees are so thick that one wrong turn and you have no sense of direction.
I was born and raised in California, so I'm more accustom to the mountains. With mountains and hills, you can follow the contours of the land. But down here in the Everglades, there are no contours; at least none that are distinguishable from ground level. But with a guide, I could cede navigation to an expert and occupy myself with countless variations of scenery and wildlife to photograph. At least that's my plan.