The astronomical viewpoint at Fuencaliente has three (modern) standing stones, where the shadow of the setting sun points to another stone at (respectively) the summer solstice, both equinoxes, and the winter solstice. Tomorrow night (Wednesday) there will be a free activity run by Cielos La Palma at the viewpoint, starting at 6:30 pm to watch the sunset, followed by astronomical observations including another chance to see comet PanSTARRS through a telescope. The activity will end at 8:30 pm.