Amazing trip! Have been on several rafting trips and by far this was the most fun! Lindsey, our guide was amazing and very informative. She kept us in the boat and did an amazing job the whole trip.
TIPS--- Take the wet suit! You will need it and the water is cold, even in late June and July.
They tell you to be there about 30 minutes early, but if you fill out all your waivers online, you can arrive closer to the actual time, just don't be late for the demo/instructional discussion.
Bring something warm to change into and leave it on the bus. It is a long ride home and a towel or quick change of clothes (there is no where to change besides behind the bus on the road, so like throw over the top clothes) or a towel for the ride back.
YOU ARE GOING TO GET WET! This is not a slow float ride, these are rapids and you will get wet even if you don't go in the water.