During the past five centuries, hundreds of ships flying every ensign have succumbed to the power of the ocean. Merchant boats, pirate ships, navy vessels - all have ended up covered in coral at the bottom of the ocean. All of them guarded secrets that remained hidden... until now. In Dive: The Medes Islands Secret, you are John Sanders, a treasure hunter and experienced diver who spends months planning and documenting a major expedition to locate and recover several ships of different ensigns around the world.