We just spent five days in Joshua Tree National Park. This remote desert park has no water (and certainly no phone or internet). We had a great time hiking the trails and looking at the desert wild flowers which were in a rare full bloom.
I am writing this parked in the back of a convenience store (borrowing their wi-fi) in the rather bleak town of Twenty-nine Palms, CA. We are going to reprovision food, water and diesel and head up to the Mojave Preserve which is even more remote and wild than Joshua Tree. After that we plan to continue to Death Valley and then to Sequoia NP. After that we will go straight to the Pacific coast and perhaps stay in more civilized locations. I'll try to update when I can. Here's some pics.