The last thing I want to hear when hiking in a park is someone else's phone ringtone, much less the conversation afterwards. But the point about needing commun

The last thing I want to hear when hiking in a park is someone else's phone ringtone, much less the conversation afterwards. But the point about needing communications for rescue is a good one. Perhaps there could be lockers at the park entrance where you swap your phone for a PLB. https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon_station https://en.wikipedia.org/wiki/Emergency_position-indicating_...