The Lohlunat, also known as "the Festival of the Moons" is a very popular Risan celebration. It was held at Suraya Bay on Risa. A Risan man told Ensign Hoshi Sato about this event and invited her to join this festival during her shore leave on Risa in 2152. (ENT: "Two Days and Two Nights")
In the game Star Trek Online, the Lohlunat was established as a summer event which occurs annually on Risa.