Awesome hot springs! Came on Wednesday afternoon/evening and had the hot springs to myself. Beautiful location with the nice cool river you can jump in and cool off.
There are 3 tubs. A big one, a more bathtub sized one, and then a natural variation that has a bunch of rocks holding the water in place (I liked this natural one the best although it has the least amount of water).
The hot springs are actually hot and I'd estimate the first tub is around 100-102° with each tub getting progressively cooler as the water makes it way to them.
Also, realize this is a natural hot spring so the water has lots of minerals and smells of sulfur. The big first tank has the clearest water, but there is still sediment within it.
Will definitely come back!
Feather River Hot Springs and Woody's Hot Springs are one and the same.
P.S. Don't wear any jewelry as it will tarnish.