The aim of the TFG is to design, build and test an hydrofoil for surf board. The design will focus on finding a hydrofoil geometry capable to ensure stable and exciting surfing. Some geometries will be built at scale with a 3D printer and tested. Finally, a winning geometry will be built in full-scale with composite materials and tested in real conditions. At the end of the project, a hydrofoil prototype will be ready for industrialization.