The Medusa's Call | Main missions Far Cry 3 Guide
Last update: 11 May 2016
Drive down the beach to the designated area. After some time into the drive, you will come across rocks that will render further drive impossible. Right after you go underneath the rocky archway, you will encounter a pirate that can be easily taken out stealthily.
Walk over to the right side and climb a hillock, that overlooks the enemies below. Use your camera for reconnaissance. Your first objective is to obtain three keys from your enemies marked with stars (the above screenshot).
Get back down to the beach. Right next to the ship, there should be the first key owner. Wait for him to walk away, towards the ship. It is the best moment to kill him. From the corpse, collect the key. Inside the ship, there is yet another enemy, who shouldn't notice anything.
Your second target should be waiting at the other side of the shipwreck. Once again, wait for him to walk away from his company and kill him on the way back.
Go aboard the smaller shipwreck, from the side of the bow. Its rear side should be patrolled by one more target. Around, there may be one more guard. Wait for the target to enter the ship and kill him there, while paying attention to the other pirate.
With all three of the keys, go aboard the larger shipwreck and enter the room with the radio(inside, you can also find a flak jacket that will come in handy in just a moment). After you eavesdrop on the radio conversation, there will be reinforcements sent. Exit now and, from aboard the ship, kill all of the enemies on the beach, and the ones trying to go aboard. After you kill every single one of them, the mission will be completed.