Grab your snorkel and your tickets for “Trick or Treat Under the Sea” at the North Carolina Aquarium on Roanoke Island. Pirate skeletons, caped superheroes and fairy princesses once again haunt the wild attraction for two nights of ghoulish good times. The annual event creates a safe environment to enjoy Halloween fun. Games and magic shows will have the family shrieking with delight. Live animal encounters and spooky divers swimming among the sharks offer thrills and chills. From 6-8pm both nights.