I'm not sure how relevant the Sportman's Law is these days - at least for hunting and tubing. I have not read the Sportsman Law in Texas in 10 years so I don't know if it really excludes activities if you pay for them. I would assume that there is not a lot of free hunting left in Texas and that many ranchers derive some if not most of their income from hunters paying to hunt. Having said that, there must be some good liability waivers out there as there have got to be a number of hunting related injuries and deaths each year in Texas. I think this would range from shooting accidents to four wheeler incidents to natural hazards, etc. I believe there are a couple of tubing deaths each year in Texas yet that doesn't seem to stop folks from renting tubes.
Now, regarding caving, it probably still applies as long as you're allowed to cave for free. Whether it sets a bad precedent or is an example of the future of caving, I don't know. I'm not sure I'm willing to pay $100 to visit these caves. G
