At around 8am Ofelia Medina Hernández, the owner of the two-bedroom Airbnb property where Mr Slater had travelled to, came across the teenager standing at a nearby bus stop.
He asked when the next bus was to Los Cristianos, a resort area where he had been staying, and she signalled it was not for another two hours. Instead of waiting, Mr Slater decided to walk.
After setting off he rang his friend Lucy Law, who had joined him at the music festival, and said he was lost, thirsty, had one per cent charge left on his phone, and had cut his leg on a cactus.
His phone died shortly after the call. Its last location was north of the cottage.
It comes as the construction company that employs Mr Slater said he was being misrepresented online.
Conspiracy theories
Bizarre conspiracy theories have been posted on a Facebook group amid high public interest in the teenager’s disappearance.
Some have speculated that Mr Slater had been kidnapped, while others suggested he is simply hiding.
PH Build, which employs the 19-year-old as an apprentice bricklayer, said: “Jay has been with us since he left school and is liked by all. He’s a valued member of our team and we stand by him.”
“The picture being painted of him is just not true. The fact is he’s a 19-year-old lad missing in a foreign country. He needs to be back home where he belongs. Come on Jay we are all praying for you.”