Though this area is crowded during summer with people on inner tubes, during the fall and early spring there are almost no people on the river. It is a short trip, less than 1 hour if the water is flowing well, but several sets of decent rapids make it a fun float. The scenery isn't too great, but the put in and take outs are less than two miles from each other, and both offer ample parking and easy access. There is a good bar where we put in as well.
Don't go past you're take out, you'll go over a dam.
None, Bring two cars to get back, you might get a shuttle service during the summer from the Inner tube rental places, but they close down in the fall.
Go toward New Braunfels on IH-35 exit north on HWY. 46. About 3/4th of a mile from the highway you will see a sign for the Cypress Bend Park, take a left and drive another 1/2 mile to the cemetery, take another left, and you'll go straight to it. For the put in, keep going north on 46 (don't turn) and turn right on river road (if you go over the Comal River Bridge you've gone too far, you should have taken a right immediately before it. Follow river road until you see the river, the bar is on the right, and you can put in anywhere around there.