After an explosion in popularity, Arenal Sound kicked off this week for its fifth year in Burriana, about 40 miles (60km) north of Valencia.
Spain's fast-growing festival frequently sells out to a largely Spanish crowd and this year 280,000 people are expected to attend the big party on the beach, according to local newspaper El Mundo.
And in 2014 the Sounders -- as the festival goers are known -- have more days to enjoy music with a special 6 day event that started yesterday and runs through to Sunday, 3 August.
Top international artists are gracing the stage, including Azealia Banks, Placebo, Miles Kane, Biffy Clyro, Crystal Fighters, The Wombats, Bastille and Mando Diao.
There's also a large representation of Spanish bands, with the likes of Russian Red, Sidonie, Leon Benavente, Mishima, Elephants, LA, Bizarre Love Triangle, Izal, Pony Bravo, The Swing Murderer and Iván Ferreiro.
More information on Arenal Sound website in English.