Kids' break is late March. We need some family camping ideas. I wanted to do S. Utah, Bryce, Zion, etc., but the wife is afraid it will be too cold. Any other ideas? We aren't desert/river people so have no interest in the dunes, motorcycle scene, loud boats and partying, etc. We like activities: hiking, biking, fishing, shooting, and I'd love some educational element with something historically interesting or natural wonder type sights for the kids. Have trailer, will travel, within reason.