River Rides started with 50 tubes in 1979 has grown into a thriving water sports rental company.. In Short Located on the emerald waters of the Guadalupe River, this shop sends kayaks, tubes, canoes and rafts barrel down the rapids and waterfalls. After your safety speech and a couple of important tips, enjoy a relaxing journey down the Guadalupe River. Thrill seekers as well as those with a little more to lose can pick and chose the adventure that best suits them. Groups like corporate teams, youth retreats, family reunions and friends come for fun in the sun.