Barnacles live only in marine or salt water environments. They live on hard surfaces at all latitudes at all depths from the intertidal zone to the deep sea. (Barnacles in the intertidal region spend part of their day, during low tide, without seawater around them.)
Where are most barnacles found?
If you walk along the sea shore, you can find barnacles on almost any solid surface that gets covered by water. On rocks, dock pilings, boats, even mussels, you can find clusters of these hard, white, cone-like houses.
Can a person get barnacles?
Yes, barnacles can grow in human flesh.