Your journey north to the world's first national park begins in Salt Lake City. Stop at Antelope Island State Park in the morning for views of the Great Salt Lake and free-roaming bison. Continue north into Idaho, where you can stretch your legs along the beautiful Idaho Falls River Walk. By evening, you'll arrive in West Yellowstone, the vibrant gateway town, ready for an early start into the park tomorrow.

Today you explore Yellowstone's Upper and Lower Geyser Basins. Start with the iconic Old Faithful, watching it erupt surrounded by historic lodge architecture. Walk the Upper Geyser Basin boardwalks to Morning Glory Pool. In the afternoon, head to the colorful Grand Prismatic Spring at Midway Geyser Basin—the largest hot spring in the US. A hike up the Fairy Falls trail to the overlook provides the best view of the spring's vibrant colors.

Focus on the 'Grand Canyon of the Yellowstone' today. The immense waterfall and yellow-hued canyon walls are breathtaking. View the Lower Falls from Artist Point, then head to the North Rim to hike down the brink of the Upper Falls. In the afternoon, drive through Hayden Valley, one of the best places in the park for wildlife viewing—keep an eye out for bison herds, elk, and possibly bears or wolves. Stay in Canyon Village tonight.

Your final day takes you out the South Entrance and through the magnificent Grand Teton National Park. Enjoy the stark, jagged peaks reflecting in Jenny Lake. Take the boat across and hike up to Hidden Falls and Inspiration Point for spectacular views. Conclude your trip in the charming town of Jackson, Wyoming, where you can celebrate your journey under the famous antler arches of the town square.