As we drove over to this park on Saturday I commented to John that we did not need a guided tour of this swamp because we already had done a couple of them, and there would be nothing new. It turned out that I was very wrong, and this was one of our better guided tours. Upon immediately starting out with our guide, Russ, we were informed that the preserve is a slough, not a swamp. In a slough water moves slowly through an area, creating wetlands as well as hammocks. During the rainy season (June-Nov.) the depth of the water may be from 2-3 feet, and the slough is then comparable to a wide but shallow stream. The slough acts as an important drainage way as it collect rainwater run-off from many square miles of watershed. A boardwalk has been built Cypress Slough, which connects the wetlands as well as several ponds. The first pond we stopped at was Otter Pond, and from an overlook we could see many birds. Ibis and great egrets were perched in the trees surrounding the pond, a red-shouldered hawk was perched on a dead tree trunk over the water, and in several different locations we saw black-crowned night herons.