“Sustainability as a Key Marketing Tool for Hotels” panel. Moderator: Maria Paraventes, journalist, Greek Travel Pages (GTP). Speakers: Alexandros Angelopoulos, vice president of Aldemar Resorts; Vicky Karantzavelou, general manager of NatTour – Bike Friendly Hotels; and Ioannis Pappas, Mediterranean Region GSTC (Global Sustainable Tourism Council) and president of Green