The event in Almerimar tomorrow night is called La Noche en Vela. According to Google this can perhaps be translated in several ways including the sleepless night or up all night.
The junta local of Almerimar is asking businesses to open between 10pm and 1am on Friday 27 July 2012. Including businesses that would not normally open at this time. They are asking businesses to use candlelight where they can and offer some fun, entertainment or refreshments to customers. In addition they would like people in the businesses to dress in white.
I guess that if it is a success tomorrow night it will be something that will be considered again for next summer.