The Snorkel is a Rare Glasses in Unturned 3.
The Snorkel can be found at Campgrounds.
It must be used in combination with the Diving Tank. Then, the player's oxygen will last for 1 minute and 25 seconds without the diving skill upgraded.
When equipped the Player can see more clearly underwater. This is not in terms of distance or the cloudiness of the water, but rather how foggy or distinct objects are when viewed up close.