San Sebastian

MacGyver was sent here to extract a photojournalist when her publisher became worried for her safety. He ended up on the run from the local military police though when he and the journalist were caught taking photos of a secret meeting between the military head and an arms dealer. 

Note: 
We’re not sure if San Sebastian is the country or the town as it’s only briefly mentioned in the Friends episode, but we do know it’s fictitious. In real life both Guatemala and Belize border Mexico via a river as shown in the episode.