This was my first overnight in the Mazatzal's and it definitely is one I will do again. It was my daughters first overnight and she had a blast. We took the trail clockwise thinking that we would have our hard day first and then a relatively easy day out the second day. Boy am I glad we did that. It was very difficult for my daughter going up Y-Bar but she took her time and rested frequently. She did very well. We were a little concerned about water since we saw virtually none our first day. There weren't any springs running on the east side of Mazatzal Peak on the Y-Bar trail. Y-Bar Tanks was running but just a small flow. Were able to filter out a few liters for the dog. We got to our camp spot just south of Windsor Spring about 30 minutes before dark and had just enough time to set up camp.
The second day was beautiful and I had time in the morning to investigate Windsor Spring. It was flowing nicely and we were able to fill up on all our water. We started out early down the Mazatzal Divide forgetting about the strenuous hike up Y-Bar the day before. Saving the downhill leg for the second day was definitely good for us. My daughter and dog spent about 30 minutes playing in the waterfall which was a welcome relief from the heat.
Very good hike and probably about the last chance before it just gets too hot.