Hello, 

Thank you for your question! If you are looking for an Oregon campsite with good amenities, then the Mazama campsite located in Crater Lake National Park is the place you’ll want to stay. Mazama does have showers, restrooms, and great hiking spots close by. They do not accept bookings, however, it is first come first serve. You can learn more about it at this link https://www.nps.gov/crla/planyourvisit/mazama_campground.htm

Have a great trip!