POTA or (Parks On The Air) 

Parks on the air (POTA) is for international amateur radio portable operations that promote emergency awareness and communications from national/federal and state/provincial level parks. The idea is to activate the park. To do so you simply need to make 10 contacts exchanging information similar to a contest but with the inclusion of the Park number.

For more information you can visit the POTA website at
https://parksontheair.com