I don't know who decided that today was Earth's birthday, but we made a last minute decision to celebrate Earth day in Saguaro National Park. It was a quick 2 hour drive down to Tucson so we thought, "Why not? Let's get out into some nature". So that's what we did. This park is split in half by the city of Tucson and we've been to the east side twice so this time we changed it up and headed to the west side of the park.