If you are looking for a summertime booking it does not surprise me that they are all booked up. I do agree with the reply above that there are other small cabins available for rent in and around the area. If you dont mind being a little outside of Estes Park and want a cabin experience, I suggest looking at Meeker Park Lodge between Estes Park and Allenspark.
The cabins are very small and cozy and of course a family of your size would fit inside of one. It's a popular spot that tends to be quite booked. However there are plenty of other cabin resorts in and around the Estes Park area. This is just the first one with the obviously popular name and theme! However if it's booked I challenge you to continue your search for another eminity in the area that suites your families needs as it's an incredibly beautiful area and the Peace and serenity is worth the experience!
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