By completing Adventures in Pirate Clan, you'll be gaining Experience, Gold, Items and Gamer Points. Adventures use up your Energy, and usually you need to meet certain requirements before you can do them, like having certain Items or your Captains above a certain size.

Gamer Points are only earned when doing Adventures with less than 100% progress or that are located in the most recent area you have unlocked.

When you do Adventures multiple times, you can earn completion Achievements, unlock new locations, and get more chances to collect their random Drops.