This trip is for adult swimmers. It is safe as long as you know how to swim moderately well.
Tubing refers to floating down a river lying in a tire inner-tube.
Yes, your body will be in the water. This is a very popular activity among college students. Come to the Cranwell Center to register by July 10. There are only 14 seats available, or you may drive on your own. Two to a room lodging at Days Inn Landmark Alexandria.