This is perhaps the easiest of all the hikes in Zion - bikes and dogs are allowed. Please note that technically, this is the only trail in Zion that allows dogs! It's a very easy path from the Visitor's Center to the confluence of roads at the mouth of Zion Canyon, and there is a shuttle stop at the end, so no worries. There is also a spur trail if you want to go to the museum while walking this trail.
If you've got a party member with mobility issues, there should be no problem with taking them on this trail - it is paved.
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