Zion and Yosemite are beautiful and great for hiking if you like doing the national park thing. The Narrows in Zion is an amazing hike if you go the whole way but depending on the season can be prone to flash flooding. We were caught in one and it was pretty scary for about an hour until it receded enough for us to get out. We were booked to do Yellowstone and the Tetons this summer but was canceled due to corona. We re-booked already for next year.