Singing of the Mayos of Chelva Activity · Chelva, Los Serranos, Valencia Image of Chelva, not of the place itself. Springtime tradition of Chelva in which the Mayos are sung through the streets of the municipality. It is held on 30 April through a group of musicians (rondalla) who dedicate verses to the young women of the town and to the Virgin. 30 de abril Photo: Chelvaweb (CC BY-SA 4.0) What to see and do in Chelva