I just did a weekend trip to Denver where I was on the ground in Colorado for roughly 27 hours. In that time, I rode every rail line in the RTD system at least once, I visited The Source for lunch, coffee, and beer not once, but twice, went out to Golden for several miles of scenic hiking in Apex Park, sampled beer and cider at 5 of my favorite breweries, enjoyed the lounge at the Grand Hyatt, explored Union Station, saw the state capital, etc. etc. A great trip. Not once did I think to myself "I don't have time to do all of this."