I went on the Grand Canyon and the Zion tours with APT. Both were brilliant days out despite the early starts. Having not even considered the fact it might snow in both the locations I hadn't even got a coat in Vegas let alone on the tour, but fear not, the guides were prepared and had coats and gloves for all the guests. I will return the gloves that I left in my pocket next time-and there will be a next time as I will come back to do Bryce without the avalanche warning. The guides knew their stuff, and could answer any of our daft questions. I was traveling on my own and was a little unsure of doing tours like this alone but the guides were really friendly and approachable and made the days really enjoyable. I would recommend them to anyone.