The longest walking route in the Azores encompasses the oldest island of the archipelago (about 8 million years). It contains a valuable geological and palaeontological heritage, in particular the largest open-air fossil deposit in the North Atlantic. It features unique landscapes like the Barreiro da Faneca, known as the Red Desert of the Azores, and other characteristics as the vineyard landscapes of Baía da Maia and São Lourenço. We also draw attention to the traditional houses of Santa Maria that are scattered around the eastern part of the island, like white dots on the green landscape.