The team was established in 2001 by a group of players of flag football at the beach.
They joined the Spanish league for the 2006 season, and got included on the Western Conference of the LNFA 2.
On their second season, again in the LNFA 2, they qualified for the play-offs and only lost on the last round (semi-finals) for the championship bowl.
The success of the merchandise finally made it possible to reach the top competition, the LNFA, on the 2008 season.
In 2012 Gijón Mariners reached an agreement with Pumas Dorados de la UNAM to exchange players and coaches from both clubs, as well as to share guidelines and training plans.