The drop in water level revealed the Siona spaceship in Fortnite. You can find him just east on Craggy Cliffs, on a sandbar in the sea. You can also help the pilot by finding three parts of his ship, setting it up for him, and sending him on his way.
You can see the three locations marked on the map below.
Spaceship part 1
The first part is the Beacon, and it's still in the cliff in front of the ship. Just build a ramp to get it.
Spaceship part 2
The second part is the battery. This can be found under a rock, right next to the ship. Just break the rock to get there. When you are close, it will make a low humming noise.
Spaceship part 3
The last part is the heat sink. You can find it next to a rock on the small peninsula right in front of the spaceship.
When you get one of the parts, just take it back to the ship and install it. When you have them all, interact with the ship and it will start its engines. A green dome will appear and a countdown will begin. All you have to do is survive until the timer runs out and the ship will take off, completing the challenge.
You'll have to watch out for other players, but we found two friendly players who were just happy to focus on finding the parts with us, so you might get lucky.
