Objective: Rescue two citizens. Rescue all citizens. Gather 7 Coins.
Reward: 3 Medals
This is a Life Boat Mission, so you'll need to get Citizens to the life boats in order to consider the mission a success.
Grab the Zapper in the middle of the world, and begin clearing the sand mounds around you. Underneath them are Citizens and Coins. Rescue two Citizens to complete the level.
For full completion, remove all the sand on the first island, uncovering all the Citizens and Coins you can. Under one mound will also be another Zapper - grabbing this will allow you to remove and place timber.
Walk to the edge of the main island, where it almost reaches the second island. Place timber to build a bridge across the ocean.
Continue removing the remaining sand until all Citizens and Coins have been found.