Silver Scale

The Silver Scale is an item in The Legend of Zelda: Ocarina of Time that allows Link to dive underwater for up to six seconds. It is obtained from a Zora in Zora's Domain if Link collects all five Blue Rupees during the Diving Game.

The Silver Scale is required to retrieve the Letter in a Bottle from Princess Ruto at the bottom of Lake Hylia and subsequently gain access to Lord Jabu-Jabu.

Optionally, the Silver Scale can be replaced with the optional Golden Scale later in the game, which further increases the amount of time Link can dive underwater.

In Hyrule Warriors, the Silver Scale is the most basic Zora Scale that Ruto can equip.

Instruction booklet description
"This scale allows you to dive deeper underwater."