I've seen a lot of this country, but never a swamp nor a sinkhole. It was definitely worth the…read more$3/vehicle. Keep in mind, we went in the winter and after a rainy day. So there were no mosquitos, the wet sinkholes were filled and a few were a beautiful, crystal, clear water. To make you even more jealous, it was perfect weather (not too hot and not too cold).
There are three main trails (Sinkhole, White blazes, Gum Swamp). We started on Gum Swamp and then took Sinkhole. However, we noticed a lot of people started on Sinkhole. Gum Swamp is 1.7 miles and is flat. At the beginning, there is a sinkhole inside a "cave". There were three major swamps which weren't as large as I was expecting. However, I've never seen a swamp so maybe it was. It was still cool to see since I've never seen a swamp. We even saw a huge deer which was close to the path before it realized we were there. The Sinkhole trail is 2.5 miles. It's relatively flat with a few, short hills to hike. This trail had a few tree roots and logs used as steps on the hills. The park did a great good with explaining about the surroundings with signs. We spent a couple of hours enjoying nature and didn't have time to go down the Crossover trail 0.5 miles.
All the trails were kept clean and easy to follow. I couldn't find anything online that said if you could ride your bike or the type of trail conditions. FYI, the trails are dirt except for a few boardwalks to lookout over the wet sinkholes. If you were wondering, the park doesn't permit bikes. There are nice bathrooms and a water fountain at the entrance of the trails.