Leiðarendi Lava Tube in Iceland were created when the surface lava solidified but magma continued to flow in tunnels 2000 year old ago. Hidden deep beneath the stunning Blue Mountains (Bláhnjúkur), Leiðarendi cave is home to a volcanic wonderland of rock formations, ice and craters. Leiðarendi is long and pitch-black tunnel that stops at an enchanting...