Yes, it is important to remember that the Fuzileiros are an elite amphibious force, thus why aquatic aptitude is an extremely important attribute.
Throughout the training course you will learn and perfect new techniques however the entry test requires that you swim 25 meters in a pool, with respiratory control in a face down technique, without support or stopping; plus while floating dive down to a depth between 2 to 2,5 meters to retrieve a 0.2 to 0.5 kgs baton.