We were in Grand Teton/Yellowstone last May. They open up the entrances as they can clear them along with various parts of the park. Some was still closed when we were there but there was plenty to see. We had to take the long way form Jackson and go to the west entrance to Yellowstone as the route from Jackson was still closed. There was still ice on the lakes at Grand Teton but it's still beautiful. We had a moose come through the campground. Yellowstone was great with less people there. We got snowed on once overnight but during the days it was nice. We had reservations in Madison campground and drove the toad from there. We drove 100 miles one day just in the park. If you are considering getting a new camera or upgrading, do it before you go to Yellowstone.