- $20 for bottomless inner tube rentals for two people ($36 value)
This Groupon is not valid on Saturdays after 10 a.m.
Rockin' R River Rides
A buoyant fleet of inflatable rafts and tubes drifts lazily down two sprawling rivers populated with exciting rapids and falls. During 1.5- to 5-hour treks, guests can traverse the Comal or Guadalupe River in an inner tube, relax with a partner in a two-seater raft, or host a regulation poker game with friends inside a raft that holds up to six. Trip durations and age cutoffs may change on a daily basis depending on current river flow.