Navigating Private PropertyAs you know, the river and river banks are public. This includes any islands. This also includes the lower part of the bank, but as a rule I typically don't camp on any part of the bank if the bank is private. (If planning to camp on islands, make sure they are going to be above water. Google Earth coupled with USGS flow data is great for this.)
You can find islands in hill country rivers like the Guad below FM474 or coastal rivers like the Colorado below I10.
It is important to point out that the public owns the bank between the low water line and half way to the top of the cut banks. (The cut bank is "steep side".) I typically interpret this as the ability to camp on the broad sand bars in coastal rivers.
Good riversSouthwest Paddler is a great resource.
My personal favorite around the Houston area is Village Creek. I have done the section between Hwy 327 and US 96 and the section from US 96 to the Lake View day use area on the Neches. I like Village creek because it's relatively narrow and shallow, the water is clear, the sand is clean, and I usually catch fish. There are usually very few people. (Especially below 96; we saw nobody.)
For all Texas, you can't beat the Rio Grande in Big Bend. Santa Elena canyon is easily the best. I have never felt at all unsafe down there. (It's hard to imagine that drug runners would want to cross down and back up a canyon thousands of feet deep in the middle of nowhere.)
For the US, my favorite has been Labyrinth Canyon on the Green River.
Canoe Camping Tips- You can bring more than you think. The first time I went, it was in canada and we did lots of portaging so we couldn't carry much. In TX there typically isn't any portaging, so you can carry much more. Bring a cooler and air mattresses.
- Scout the route on google earth. look at the image date stamp and cross reference to USGS
- Plan to be leisurely. My favorite trip on Village Creek, we took a couple that had never been camping at all. I planned to only do 13 miles over the course of 3 days with a relax day in the middle. That was a lot of fun. You can reasonably do 10+ miles per day if you want to.