I've done more searches this morning to no avail, even with pieces of the lyrics I can understand (Galician is somewhere in between Spanish and Portuguese). The song begins with "Navegarei ao fin do mar [? verb in future tense, sounds more or less like "abrigarei"] unha travesía, a favor do vento, contra o vento, navegando vivirei, [?] marineiro é (?] meu corazón... [...] este corazón marino quere chegar ao final..." This should normally be enough to find any lyrics that would include this words. It's not.