Welcome to Zion! When we had our Galapagos plans fall through, we decided to meet up with the family in Utah for a National park trip - starting with Zion National park. We only spent 3 days here, but we did get a good taste of the park through some canyoneering and biking. Zion is known for Canyoneering - which is where you climb up/down steep walled canyons often by walking through/in the water. We rented gear (big waders & felt soled boots) and took the bus up to the start of the narrows. There were a lot of people for the first 1-2 miles (note the first picture below) but it thinned out as we kept going.