In an unusual twist, Christmas Eve was a rainy in Tucson this year. A number of my cousins were looking for something to do while staying dry and settled on Biosphere 2. I have been here before, but liked it enough to be interested in going back.
The very short walk to the entrance of the facility turned out to be very very wet, and we were pretty well soaked by the time we made it in. After exploring the exhibits at the entrance a bit (and drying off) we went on a tour. I pretty much hung out near the back of the group snapping pictures of all of the interesting plants, flowers, and mechanical wonders. Fortunately it had stopped raining by the time we left so we made it back out without a second soaking.