The offer is not valid with the Interagency Annual Pass. If you are a holder of an Access Pass or Senior Pass (formerly known as Golden Access or Golden Age passes) you can receive a 50% discount off of established standard rates at Bridge Bay, Canyon, Grant and Madison Campgrounds. The offer is not valid for Fishing Bridge RV Park. You must show your pass at check-in to receive the discount on your site only. Otherwise you will be charged the prevailing standard rate. For more information about Interagency passes, please visit this page on the NPS website.