I would do it again & take more time at the geyser & the Fontana Thermal baths.Restroom / WC stops at all locations.Food & snacks too.Geyser, National Park Falls & Thermal Spa were all top notch & bucket list items.Just no chain hotels close, except for school during the summer, or yerra we saw on the way 99 minutes outside of Reykjavik to get back to hotel.