My husband, dog, and I have hiked the TRT in its entireity on 9 different day hikes in one summer. In August, it can be hot and in some sections very dry with little water. I remember in particular Kingsbury to Big Meadow, Tahoe City to Brockway, and Brockway to Mt Rose as having not a whole lot of water for my dog to wallow in! But it is a beautiful hike overall...Right now, all but Spooner Summit is pretty much covered with snow.