What do you recommend?
end of March

Thanks

Zion has some wonderful short hikes. See if the rangers are leading any nature hikes.

There's some sweet mountain biking in the St. George and Zion area (not in the NP but outside)

Go caving at Bloomington Cave.

Meadow hot springs are some of the coolest you will ever find. Tons of biking and really cool dinosaur stuff for the kids.
Dallen

thanks everyone, i don't think we are going to bring the bikes on this trip

zion hiking, hot springs, and dinosaur stuff sounds great for rest day activities with kiddos!