Bridges are structures that allow the player to go on bodies of water such as the ocean, river, or lakes without losing oxygen, and without the high loss of heat, hunger, and mobility associated with being in water, while still hydrating themselves. They were added in the Vamos a la Playa update. Structures, such as walls, fires, and plant plots, must be placed on bridges if they are to be placed in water. Plant plots on bridges must be used to plant seeds in water, as seeds may not be planted directly on bridges. Note that plants on plots on bridges on water are not hydrated by the water under them; you will still have to water them with a watering can.
This item can be used to protect yourself from sandworms.