SEA LIFE Grapevine Aquarium is honoring Local Heroes with FREE admission throughout January. Active and retired public law enforcement, firefighters, paramedics, doctors, nurses and military service members who show a valid badge, ID card or pay stub from their department or organization will receive FREE admission from January 1-31. Friends and family members can purchase additional tickets for $10, plus tax. Offer valid for up to 6 additional guests per attraction, must be used on same day. Valid documentation must be presented at the door, not available online.