This is one of the most illogical film I've even seen. First of all, it's really stupid of those two girls to climb up that 2000ft rusty abandoned radio tower without carrying sufficient safety equipments. And why tf wouldn't they say anyone where they're going and why didn't they bought parachute with them just in case, and even if you're stuck at the top and all your efforts are not working out , you could've attached your phone with the drone and fly it all the way down to the ground and receive the signal for your phone to get some help.
God, those two girls were so dumb and stupid to the core and especially the blonde one, who was very annoying and I was cringed very much with that character. This movie has a lot of plot holes and is too unrealistic to digest what's happening in the scenes.