Sorbas is situated on the edge of a cliff in Karst en Yesos, a Natural Park. There are several caves and the Cuevas de Sorbas offer several tours ranging from an easy basic route of about two hours to difficult technical routes of five hours. These guided tours go through natural tunnels and caves. You will be equipped with helmets and lights and you are advised to wear sturdy, comfortable footwear and book in advance.