The Diving Gear is an accessory that combines the Flipper and Diving Helmet. It gives you the ability to swim, and greatly extends underwater breathing time.
Diving Gear Terraria HERO
Notes
This item is made essentially obsolete when you obtain the Neptune's Shell. Before you reach that point, the diving gear is the most useful accessory for underwater exploration.
When out of air, it reduces the speed at which you lose health when still underwater.
If at 400 health, when out of air, you have approximately 1 minute and 40 seconds until death.
