Y Siambr is presented by Aeron Pughe and is set deep below a mountain in Snowdonia. In this exciting and unique game show, we will see adventurous teams of three compete in a series of games inside a giant underground trampoline rig and zip wire complex. Competitors will fly, climb and traverse their way through a series of games over four levels. At the end of level four the lowest scoring team is eliminated from the game. Only the team that wins round 4 progresses to the final round ‘Escape the Chamber’, where they have to complete four games to reveal a four digit code before they can run out of the mine. Can they succeed in this final task to escape before the power core runs out and the mine is left in darkness.