Spanish police said they were continuing to look for a British man who has been missing for four days on the island of Tenerife, releasing footage of their efforts on Thursday, June 20.Jay Slater, 19, was last heard from on Monday morning when he called his friend Lucy Law to tell her he “didn’t know where he was,” and needed water, after beginning an 11-hour trek back to his hotel, according to ITV News.His last phone location was in the Rural de Teno park near the village of Masca in the Tenerife mountains.The search on Friday had begun to focus around a ravine in the area, according to the BBC.In the footage, police can be seen using helicopters, vehicles, dogs, and teams of people to sort through the terrain.“The search for the young British man missing in the Masca neighborhood of Buenavista (Tenerife) continues,” the Guardia Civil said. Credit: Guardia Civil via Storyful