I backpack with my wife, so we have each other to entertain. Sometimes she brings a book...but I find it pretty peaceful just to lie in the tent and be in the moment. Of course, that often leads to me being in deep slumber...
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Check our our website: http://www.backpackthesierra.com/

Or just read a good mystery novel set in the Sierra; https://www.amazon.com/Danger-Falling-Rocks-Paul-Wagner/dp/0984884963