The Deep Diver is a Hardmode accessory that drops from the Aquatic Scourge. It grants 8 defense. While the player is submerged in water or honey, damage, movement speed and acceleration are all increased by 15%, the player gains an extra 15 defense while submerged in water or honey, and the player gains the ability to dash a base distance of 36 blocks by double tapping the ◀ Left or ▶ Right key.
- Using this accessory alongside an item that eliminates water physics such as Victide armor or the Sea Shell greatly increases the distance and velocity of the dash.
- This accessory has the longest base dash distance of any dashing item. This makes it well worth it even in the endgame, providing that the player uses an underwater arena.