Grab the bigger boats, sail on and pick the biggest treasures. It will do more to bring your loot safely and avoiding other buccaneers who will not let you do so easily.
Caribbean Sea is a dice game. On each turn, you roll as many dice as pirate your fine team have available. Then according to their value, you place your pirates on the board for hire new pirate, borrow boats, get cards with special effects, or place yours buccaneers on the best place on the trail to treasure. You'll also be able fomater mutinies to take the place of pirates enemy, attacking enemy ships and send them to the bottom and take them treasures, but also try to place your pirate in their crews to take advantage of their wealth.
In the end, the player who collected the most treasures will be proclaimed the master of the oceans ...