Little Island: 20 Diamonds

Every pirated thinks only about treasure. So when you heard that there are some small island very close which hide a big treasure, you went there instantly. Together with your crew you searched for the treasure for long time, but without success. So your crew thought there is no treasure and wanted to leave. As you won?t give up, they left and let you alone on the island. So now you are trapped here. You have to find all the 20 diamonds on the island and using those it will be revealed a way to escape.