The Baytown Nature center is located in the old Brownwood subdivision. Once an upscale neighborhood with great views of the surrounding bays, most of the area has sunk to sea level or below due to subsidence from groundwater pumping. After repeated floodings in the 1970's, the neighborhood was finished off by Hurricane Alicia in 1983. The remaining homeowners were bought out by FEMA and the City of Baytown and the area was eventually converted into a nature center and wetlands. A site on the Great Texas Coastal Birding Trail, the Nature Center is home to over 300 species of resident and migratory birds. This site is primarily land-based but there there are some water-based areas around the marshes and along the bays. Some of the old neighborhood streets are still there, though many of them are closed to vehicular traffic. You can still see a few foundations and other evidence of the homes that were once here. Read more about the history of the area here.
You're looking for a camo'd bison tube located outside the park gates. You may have to dodge muggles taking wedding pictures, etc, to make the find!
Congratulations to WTT-B2 for being FTF!
Grgurerq. Oruvaq "Pylqr".