Cave of la Chelva Nature · Alcudia de Veo, La Plana Baixa, Castellón Image of Alcudia de Veo, not of the place itself. Also known as the Cueva del Toro, a vertical opening in the rock with waterfalls and an underground river in Alcudia de Veo, accessible only to experienced divers. Photo: Wikimedia Commons (CC BY-SA 3.0) What to see and do in Alcudia de Veo