Originally Posted by TRRed

Some random thoughts:

I have stayed at (and have recommended to friends) the Renaissance Flatirons, adjacent to the Flatirons Mall between Denver and Boulder. Do check prices before using points, as that location often has very good rates. There is a free shuttle to Flatirons Mall, which has a decent, sandy kids area.

I don't believe any of the Marriott properties in Boulder are within walking distance to CU or Pearl Street Mall (the pedestrian mall in Boulder, which has interesting kids areas). My guess is that there will be a lot of shuttling; hotels should have details. The Boulder Marriott is in a very congested area, and parking is likely to be very tight.