When in Campground Search, selecting the Instant Book with Spot2Nite filter will allow all campgrounds with instant reservation booking in your search to populate first as results.
Note: Once selected, the button will turn green. You'll also see Spot2Nite on the campground description. If there are no campgrounds in your search with instant reservation booking, a list of campgrounds with other reservation options will still populate.
Choosing the desired campground will bring you into the Campground Card. Then clicking on the green Instant Book tab under Reservations on the far right side will allow you to book the desired campground.
Also see Trip Planner FAQs, under the headings Preferences & Filters and/or Select & Edit Campgrounds