Great Sand Dunes does not require a timed entry ticket to visit the park. You are purchasing an entrance pass. If you already have an annual or lifetime National Park Pass, DO NOT purchase this pass.This pass is only valid for entrance fees at Great Sand Dunes National Park. All visitors 16 years of age and older are required to pay an entrance fee at Great Sand Dunes National Park. Please be prepared to show your physical pass or digital pass on your mobile device. Passes are non-transferrable, non-refundable, not replaceable if lost or stolen, and are void if altered or reproduced.