Welcome to Houston!
As ploddinTod said, Baytown is not the most scenic or healthy area to reside. Unless of course, you like the smell of petro-chemicals and the sight of refineries and pollution contributors. They don't call it the chemical coast for nothing!
I would suggest maybe heading north of Houston (up stream) to find some "healthy" kayaking. Or maybe there is some good kayaking on the Brazos river. I don't kayak, so I wouldn't be much help. But I would recommend that you check it out and do a little research before making any commitments. A move from the Big Bend Country to the east (industrial) side of Houston is a MAJOR contrast!