The terrain in the area where Jay Slater disappeared is "complete wilderness" a local travel guide warned.
The search for the missing teen has now entered its sixth day after Slater mysteriously disappeared after a night out on his first-ever holiday without his parents.
The 19-year-old attempted to walk back to his accommodation after missing a bus, a journey that would take 11 hours on foot.
Joe Cawley, a writer on Tenerife.com, warned the Terrain in the area could have proven an issue for the young boy.
Cawley explained: "Masca is one of the prettiest villages in Tenerife, but it's very remote. It's only accessible via an extreme switchback road.
"It clings to the side of the Teno mountains, which is a vast area scarred by lots of ravines and cliffs.
"I think Masca itself is about 1000m above sea level and it is difficult to access. You need a car to get there. Some trails do crisscross the area, but again, it's very barren.
"It's full of cacti and fallen rocks. It's difficult for even the most adept hikers. But for someone like Jay who's not used to the area, it's got to be a nightmare. It is complete wilderness."