Hike the Big Thicket National Preserve this winter during the cool, clear sky months. There are a number of different sections to hike so head to the Information Center for a trail map. The Big Thicket is one of the most diverse areas in the U.S. for plant diversity and is the only preserve in the National Park system. It is home to many pitcher plants and unfortunately wild hogs. Watch your step for the plants and keep an eye out for the hogs.