International Surfing Day is an unofficial observance celebrated worldwide on the third Saturday of June, close to the summer solstice. Established in 2005 by Surfing Magazine and the Surfrider Foundation, the day honors the sport of surfing, the surfing lifestyle, and the sustainability of ocean resources. Activities typically include surf contests, barbecues, and film screenings, with a strong emphasis on environmental stewardship. Surfers often participate in beach clean-ups, habitat restoration, and the maintenance of recreational areas, particularly through initiatives led by the Surfrider Foundation, a non-profit organization dedicated to protecting the world's oceans and beaches. The holiday enjoys particular popularity in South America, Oceania, North America, and coastal European countries, where surfing is a common pastime.