Jay Slater's distraught father Warren Slater has launched a fresh appeal as he continues to look for his son.

       Mr Slater and Jay's brother Zak Slater have been scouring the area where the 19-year-old went missing on June 17.

       The teen's father repeated he has no intention to give up and will continue to look for Jay until he is found.

       Returning to Valley of Barranco de Juan Lopez, near the village of Masca in Tenerife, Mr Slater told The Sun: "We are still out looking. What more can we possibly do?"

       Mr Slater then pleaded: "I need an army to help me." People, he added, "don't understand the vastness of it."

       READ MORE: Significant new information passed to police about missing Jay Slater

       Over the past three weeks, emergency services, Spanish police, Jay's family and volunteers have searched a massive 18-mile area to find the apprentice bricklayer from Oswaldtwistle in Lancashire.

       The teenager was holidaying with friends when he vanished in a rural area in northwestern Tenerife.

       On June 16, Jay was partying with friends at the Papagayo Club in Playa de las Americas. In the early hours of June 17, the teen left the nightclub with two British men rather than heading back to his accommodation in Los Cristianos.

       The trio travelled to the holiday rental where the Brits were staying, near the village of Masca.

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       After spending some time there, Jay left the Airbnb at around 8am on June 17. After reportedly gathering information about buses going towards Los Cristianos, Jay called his friend Lucy and told her he was attempting to walk back - despite the trip being around 11 hours on foot - was without water, had his phone on one percent and had cut himself with a cactus.

       His phone pinged for the final time at 8.50am on June 17.

       Spanish police launched a major search after Jay went missing, but called off the mission on June 30. An investigation into the teen's disappearance continues.

       Volunteers and Jay's loved ones continue to scour the area near Masca.