O2 Martial Arts Academy

O2 Martial Arts Academy (formally known as Academia Casca Grossa de Jiu-Jitsu or the Relson Gracie Jiu-Jitsu Aiea Academy) is based out of Aiea, Oahu, Hawaii. Come on down to our training facilities and see our students and instructors in action, or check out some of our academy's photos! Our philosophy for our kids classes is simple; if kids have a lot of fun in class, they will WANT to train.

Come and meet our talented instructors and learn more about them through their online biographies. O2 Martial Arts Academy (formally known as Academia Casca Grossa de Jiu-Jitsu or the Relson Gracie Jiu-Jitsu Aiea Academy).