My wife and I visited during the comfortable spring months. Definitely praying your bug spray during more hot and humid summer months.
Hiking is easy as the paths are completely flat. Boots or hiking shoes are a must when the spring and summer rains arrive as flooding is common.
We hiked a number of trails on both the east and west sections of the park. If you want a true swamp feel you definitely need to hike the east end of the park.