Seashells

Secret Seashells or sometimes just Seashells are a special item in Link's Awakening that are collected as part of a special sidequest. There are over twenty of these seashells scattered throughout Koholint Island, and they are commonly found underneath bushes and rocks, and can sometimes be found underground. Travelling to the Seashell Mansion with five or ten of these seashells will result in a reward of one seashell. When you collect twenty or more seashells, you'll earn a special new sword which is twice as strong as your original one.