Skopelos Island on Twitter: "The famous beach Kastani, featured in the film Mamma Mia. https://t.co/tGQW0ZP8rM 📷: Stefanos (https://t.co/PvSlHNePId) #skopelos #visitskopelos #apieceofyourheart #apieceofyourart #visitskopelosisland #sporades #greece ...