Organization needs to improve. Did everything possible to be proactive by purchasing tickets on-line 4-5 days in advance & paying convenience charges of $9.25. Arrived early before 2:00 PM time, not knowing what kind of lines to expect. Turned in printed out tickets, fully completed waiver forms along with receipt clearly showing 2:00 PM time to attendant at window around 1:20 PM and received orange wrist bands. We went to Starbucks since there was no line for the 2:00 PM time slot. Return at 2:00 PM for our scheduled time, got in the tubing line & found we had the wrong wrist bands. Needed blue not orange. Even though we had our paid receipt showing the 2:00 PM time, the gentlemen running the tubes sent us back to the window to get the correct color wrist bands. Because the bands had already been printed & given to us, the window attendants had a difficult printing new bands for us as the session was sold out. This cost us about 15-20 minutes of time, so we only were able to go down 3 times vs. 4 times. Bummer! Don't know if the orange bands were noon time or not, but if the tubes were getting ready to close in 10 minutes, don't think we would be paying $50 for 10 minutes of tubing!