I have 6,4,3 year old kids and am headed to Colorado. Ultimately I'll end up in Vail but I'm open to ideas for the first couple day. Just curious what everyone had done that there kids have enjoyed in Colorado. I was looking into Glendale springs (caves, hot springs etc), Is Leadville fun for kids that age? As a kid I remember taking a train ride and panning for gold in some town but cant remember where. Any advice would be appreciated.