http://swissbaync5d7ykaz7dh7v4qjrb4gmen5aj3bogxrcgbb43ij34bjuyd.onion/pdf/Books/Survival/Survival/shltrall.html
Shelter IS NECESSARY to give shade, to repel wind, rain and to keep
warmth. SLEEP & ADEQUATE REST ARE ESSENTIAL and the time and the effort you
put into making your shelter comfortable will make them easier to get.