I love this park, the river has had many adventures. Great for kayaking and boating. Even great to let your dogs run loose in the river. It has a bike trail with a steep hill, bathrooms at entrance, visa machine to ONLY accept park fees. You don't have to search high and low for 3 dollars. A couple of trails that fun to be adventurous on.
They have private rooms with a log tub and outdoor communal option. FYI some local Oregonians love to disrobe in the communal area. So be aware that you will see naked people. I went with my boyfriend and we shared a private booth for privacy. The hot springs will revive you after a long hike or camping trip.