Cache Canyon Whitewater Rafting
Cache Creek is a large stream in Lake County, California, Colusa County, California and Yolo County, California. It offers the only self-guided whitewater in the state. There is a facility near Cache Canyon providing the opportunity to raft on the Class 3 whitewater river. The official site is here. Cache canyon is 2 hours north from San Francisco.
The experience is definitely fantastic, especially for these who enjoy speeding. I have tried twice, first time in 2000 and second time in 2001. The water pushes the raft down the stream. The water is always chilling so it is better to go there in early summer for warmer temperature and more water. Make sure that one knows how to boat. It is important to control the head of your raft. We also need to wear Tennis shoes. The stream is fast-flowing and shallow. In case we fall into the water, tennis shoes help us stand still on the river stones. The facility provides the equipment for rafting, including two-person rafts. It has safeguards to take care of accidents. It is a fun place to enjoy and exercise. I will definitely try again when having some time. 
