Pirate Island

This is basically a mine island where the pirates are in the cave mining different ores to earn money. After completing this, you will unlock the Marina. This will be your first portal on your airport. Instead of travelling through the portal back, you can also go into the canon as you will be launched back to your airport.

Trivia

 * Pirate Island is one of the two places where you can buy a Boat. Second one is Marina.