A half day tour offers a great introduction to the park, but a full day offers better opportunities to see wildlife in their natural habitat. The animals that roam the Greater Yellowstone Ecosystem are wild animals, so there’s never a guarantee that you’ll see anything as you drive through the park. On a half day tour, we have roughly 4 hours to search for wildlife, but on a full day tour, we have double that time to explore deeper into the park and spend more time looking for wildlife. A half day tour is perfect if you’re short of time and you plan on returning to the area in the near future. A full day tour would give you a much better experience, so plan ahead and schedule a full day in Grand Teton National Park, if possible.