<p>Mario:<br>
Canyon de Chelly is a wonderful place to visit and photograph. December will be cold, though! If you are hiking, there is one trail (White House Ruins) you can use on your own. Additionally, you can drive along the rim without a guide. But every other way of exploring in the canyon must include an official guide. Luckily, there is no shortage of tour guides. The link below offers an official National Park Service list of authorized guide companies. When I toured the canyon a few years ago, I just asked at the nearby Park Service headquarters and was directed to a spot where individual Navajo guides were available for hire. We negotiated a price and had a great time. It worked for us because we had our own 4-wheel drive SUV and the guide simply hopped in and drove us down into and all around the canyon, stopping wherever we desired. A safer bet, especially if your time at the canyon is limited, would be the aforementioned list of approved guide companies. A call to the local park service headquarters to inquire about average conditions in December would be advised. They can close off access to the canyon if there is bad weather, flooding, etc ... <br>
http://www.nps.gov/cach/upload/CDC_2015.pdf</p>