Inspired on 6254 and 6258 Lego set...
On a pair of atolls there is a semi-buried treasure, marked by two palm trees crossing each other to form an "x". While newborn turtles conquer the sea for the first time and a hungry shark ambushes a small dolphin following its mother, two female buccaneers celebrate the discovery of the chest with bad rum.
Others had reached there in the past, but luck had abandoned them leaving them shipwrecked on those remote islets, and discord had taken over.
Now, the only survivor has nothing left to defend his treasure but an empty bottle...