Despite what pirate movies portray, they did not bury their treasure. Pirates would ordinarily steal from ships crossing the Atlantic carrying lumber, animal hides, cloth, etc. They would also typically try to steal food, alcohol, and weapons, all of which they needed. You can’t use what you bury, not to mention it would probably go bad. One pirate named William Kidd reportedly buried his treasure on a tropical island. Sadly, he was betrayed by an ally who dug up his treasure and used it to convict him of being a pirate.