The 729 nude swimmers went for a swimsuit-free dip in the Mediterranean Sea in a bid to break the skinny dipping world record.
The previous world record set by 506 festivalgoers in New Zealand last year, local news sources report.
According to the Europa Press, about 600 people were expected at the event. Vera Mayor José Carmelo Jorge was pleased with the turnout, calling the mass nude swim a "tremendous success."
Organized by the town of Vera and the Spanish Naturism Federation, the swimmers showed up to Playa El Playazo beach in throngs Sunday morning before disrobing and taking a collective dip in the Mediterranean around noon.
Though funds raised during the event will be donated to charity, the record-breaking attempt was meant to bolster tourism in the small resort town of Vera, which is home to several naturist beaches and residential zones.
See the NSFW photos of the nude swimmers attempting to break the skinny dipping world record in the gallery below.