This documentary tells the history behind the discovery of the Cepilho’s Wave that is located in the Village of Trindade really close to the border of the states of São Paulo and Rio de Janeiro on the Brazilian Coast. This region has great waves and is known as the place where talents such as Filipe Toledo and Wigolly Dantas started surfing. The story is told by the first group of surfers that found this wave around the early 70’s. The Cornerstone Wave explores the memories and good vibes that this group of people shared during that period. Official Selections 2018: Skate and Surf Film Festival, International Surf Film Festival Anglet, Portuguese Surf Film Festival, Surfalorus Film Festival.