At that age, my boys enjoyed Sign of the Beaver, as well as the Little House books esp Big Woods and Farmer Boy, as they included pictures and descriptions of trapping, smoking meat in a log, etc. 2nd vote for Swiss Family Robinson (recommend unabridged or you miss a whole lot)
We also began reading aloud Arthur Ransom’s Swallows and Amazon’s series. Not survival exactly, but the children do boat, cook, adventure and camp on their own. Some of the books have had a chapter or so about a ghost story or witching for water with sticks, but I just skipped those parts, as we so enjoyed the majority.