Reading the wikivoyage page on one of the areas of Dubai, I came across Hatta, an exclave of the Emirate of Dubai. Based on the mention on that page, and the photo on the stub Wikivoyage page for Hatta, it looks an interesting (and less hot!) place to visit
Unfortunately, the Hatta Wikivoyage page is (currently) a little vague on public transport options, as seem to be the Dubai pages. I'm not sure if my budget stretches to hiring a Dubai taxi for the whole day, and I don't have a car.
Is it practical to visit Hatta on a day trip from Dubai, by public transport? And if so, where would one go in Dubai to set off from? (Bonus marks for a timetable and prices if possible!)