Describe Sam's manner of summer bathing in My Side of the Mountain?

Sam's manner in his summer bathing is....

the water was cold,so it woke Sam up. It started Sam's day with vengeance.Sam would tether Frightful to a hemlock boughand splash Frightful from time to time.Frightful preened,Sam scrubbed himself with the bark of the slippery elm. He said that it gets soapy when you rub it.They were a gay gathering-Sam,Frightful,the Woodthrush, and Baron Weasel.