Seaweed, originating from the ocean, is a potential foodstuff. Gungans are known to consume it. At the Festival of Return on Ahch-To, the Lanai offered spiced seaweed. To align with the ocean theme at Nifera Shu's birthday celebration, which Poe Dameron and Finn attended, numerous seafood dishes were presented atop beds of multicolored seaweed. Following its submersion for years, seaweed was attached to Luke Skywalker's T-65B X-wing starfighter when he retrieved it from the waters of Ahch-To.