Forget asking, "Can you hear me now?" Put your phone away and take a personal retreat to one of these signal-free destinations http://on.natgeo.com/2HLb6nQ

Forget asking, "Can you hear me now?" Put your phone away and take a personal retreat to one of these signal-free destinations http://on.natgeo.com/2HLb6nQ 

https://twitter.com/NatGeoTravel/status/967564848497242112