The search for missing teenager Jay Slater has been narrowed down to a more specific location, with one rescuer admitting it is "strange" that the 19-year-old has not been found yet.
Rescue teams are currently searching the Rural de Teno park, a mountainous area with a 2,000-ft ravine where Slater's phone last pinged.
Now, police in Tenerife have honed in on specific buildings in the region to try and locate the missing teenager.
Slater flew from Lancashire to the Canary Islands for a music festival when he disappeared after he went to stay with people he met during a night out on June 16.
Jay Slater search location narrowed as rescuer involved in investigation admits he's baffled by 'strange' disappearancePA/FacebookDuring his final call to his friend Lucy Law at 8am local time on Monday, the 19-year-old said his phone had only one per cent battery, he was thirsty and he did not know where he was.
His last location shows the Rural de Teno Park - an area popular among hikers. He has not been seen since and the search and rescue operation is now in its seventh day.
Pictures from the humongous search operation in northern Tenerife today show workers honing in on one specific area.
In the middle of the sparse bushland, with a terrain that has been described as "a complete nightmare", rescuers have focused their search efforts on two small brick buildings.
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Pictures from the massive search operation in northern Tenerife today show workers honing in on two small brick builings
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A member of the Guardia Civil near the last known location of Jay Slater, near to the village of Masca, Tenerife
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A firefighter involved in the search admitted that the terrain makes it particularly "difficult" to find people.
Speaking to Manchester Evening News, Riccardo from the Brigada Forestal, said: "It's very difficult to find people here, because of the ravines and the mountains... I've seen the case and about the missing boy on the internet... but the days are now passing by and it's increasingly strange that he hasn't appeared yet.
"The information we have is that Jay [and his friends] were going to a music festival, and afterwards, the last sign of him was around here in the Teno Rural Park. I don't know if he was walking, hiking.. I just don't know. That's where I lose the thread."
The last confirmed sighting of Slater was at 8.15am on Monday by Opherlia Medina Hernandez who said that she saw him walking through the village of Masca, 19 miles from the party resort of Playa de las Americas, where the festival NRG took place.
She told The Times: “People don’t get lost here.”
One worker involved in the search admitted that the terrain makes it particularly 'difficult' to find people.
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The search has entered its seventh day
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Last known location of Jay SlaterPAJoe Cawley, a writer on Tenerife.com, told GB News that 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.
"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."
British Police in Lancashire are said to have made “an offer of support to the Guardia Civil to see if they need any additional resources” in their efforts to find the teenager .
However, the police in Tenerife have reportedly declined the offer and are continuing the efforts themselves.
