Blue Lagoon is a refreshing summer cocktail made with a combination of vodka, blue curaçao, and lemonade. In order to prepare it, vodka and curaçao are shaken with ice, then strained into a highball glass filled with ice, and topped with lemonade.
The cocktail is typically garnished with an orange or lemon slice before serving. It is believed that Blue Lagoon was invented by Harry MacElhone’s son, Andy, at Harry’s New York Bar in Paris in 1972.