Fodor's Expert Review Jameos del Agua

These water caverns, turned into an architectural destination by César Manrique, is situated 15 km (9 miles) north of the Costa Teguise. They were created when molten lava streamed through an underground tunnel and hissed into the sea. Look for the tiny albino lobsters on the rocks in the underground lake—this blind species (Munidopsis polimorpha) is found nowhere else in the world. There's a pleasant if basic restaurant by the lake, and the Casa de los Volcanes is a good museum of volcanic science. Night visits are possible on Saturday.