In Disney Dreamlight Valley, Sea Snails are a type of fish required for specific recipes and you need to know how to catch one. I came across this creature while fishing at different biomes in the Eternity Isle, and here's how you can get them easily.
Where to find Sea Snails in Disney Dreamlight Valley
Sea Snails are new types of fish you can find in the game, and they are exclusively located at The Docks and The Overlook biomes on the Eternity Isle map. After visiting these two biomes, check out the water bodies in the area. Fishing at any of the ripples won't work, as I've tried this technique several times in-game.
Instead, equip your Fishing Rod and aim for the white and blue colored ripples. You are most likely to find Sea Snails, Octopus, and other types of sea creatures from white and blue ripples at The Docks and The Overlook biomes.
I've searched around Dazzle Beach and other biomes on the older map, and so far these new types of fish only spawn on the Eternity Isle. I suggest spending more time on the new map to discover all the materials and resources as you'll need plenty for story and friendship quests.
Sea Snails are resources you'll need for various purposes. This is an essential item required to complete the Best Fish Forever quest, so I recommend fishing them in bulk to store later on. You can consume this item to gain 800 energy or give it to a companion to improve friendship levels. Keep an eye out for Favorite Gifts for companions as the Sea Snail might be a required item. You can also sell this fish for 250 star coins at any of Goofy's Stalls around the map.
To find more about Disney Dreamlight Valley, check out How to find the Ancient Gate in Disney Dreamlight Valley on Pro Game Guides.