Posted high in the cloud forests that surround the still-active Baru volcano, the marker is hard to miss. But the sign also lists sharply to one side—as if this remote warning had been slapped together in a rush.

Back in early April of 2014, when Kris Kremers, 21, and Lisanne Froon, 22, disappeared near the top of the Divide, there was no sign here at all. 

For weeks there was no sign of the women either. Investigators know they started the hike in good weather, at mid-morning, and should have summited by about 1:00 p.m. That would have given them plenty of time to return to Boquete before nightfall, but for some reason they never made it back to town. 

After a slow start, authorities eventually put dog teams on the ground and rescue choppers in the air—but initial search efforts proved useless.