Where does barnacles live?

All barnacles are marine, meaning they live in the water. Most inhabit shallow or tidal waters, with 75% of barnacle species living at water depths of less than 300 ft (100 m). However, they have been found at great depths of 2,000 ft (600 m).

Barnacles live deep down at the bottom of the ocean. Usually around 500 - 2500 feet.