We are driving up to Breckenridge, CO this week and we will have our young kids (2.5 and 5). We have never been to CO before. I know we'll take the kids tubing/sledding but we are not doing any skiing. We are staying in a cabin right outside of Breck so we'll be able to play/hike in that area. Is there anything else we need to do for the kids? We are driving from College Station to Breck and then from Breck to Boulder to see some friends. If you have any suggestions please share (either in the towns mentioned or just along the way). Thanks!