During the second week of March, though, Valencia doubles in population and turns into a giant, wild party. Las Fallas is a week long festival with tons of fireworks, giant cardboard statues that are burned down, outdoor street discos, parades, and community cookouts. Spanish prices are close to those of the US, so be ready to pay for lodging and food. Finding a cheap hostel can cut down on expenses.
Parties are everywhere and every night from the early evening until the sun rises.
Outdoor discos play dance music and bands play on street stages. Each community creates its own falla, beautifully painted cardboard and wood statues, and it's fun to walk through the city taking pictures of them. Sunny Spain is not warm during March. It is about 10 - 15 degrees warmer than C'ville, so definitely don't bring your bathing suit. I also saw carnival games on the street where you could win a bottle of whiskey.