Visit the cave on the side of the island. There are two small entrances to a secret area in here containing data-bank-1, a large chest, and some narrative about THE WELL explaining that you can access it from underneath. Swing around under the island and you will find the entrance.

~ Ascend to the first floor ~

1. On the first floor you will find data-bank-2 and some small chests.
   
2. Enter the 'blocked' room on the first floor. If the large rock is blocking your way, use an atlas-lifter to move it. You will find data-bank-3 in here and an arrow puzzle.
   
3. Solve the puzzle to unlock the large chest and the energy wall blocking access to the second floor. The direction of the arrows should match the match the arrow ornaments on the pillars outside this room at either side of the well (UP). These arrows will not turn green until both are in the correct position.
   
4. Once you open the large chest, it will enable the drone. This drone will lead you to a side-room on the first floor that has been obscured with foliage.
   
5. Enter the side room and complete the wall-crawl to find another large chest. Drop down the small well after opening the chest to find a small chest on the rocks below, then swing back over the to well entrance under the island.

~ Ascend to the second floor ~

1. You'll find a door with three red lights that is blocked by an energy wall.
   
2. Scan data-bank-4 then explore the side rooms for the button to activate the relay puzzles and a drone. You will find some small chests along the way and a large chest nestled away in one of the rooms.
   
3. Solve the relay puzzles and guide the drone to its final destination to unlock the blocked door.
   
4. Before going up the stairs, make sure to grab the chests at the relay terminals (behind the windows) and find the hidden window-entrance leading to another large chest.

~ Ascend to the third floor ~

1. You will find yourself on the outer ring of the third floor, with access blocked to the inner ring. Travel the hallways and look through all of the windows to find a hidden loot room and some buttons to shoot that will unlock the blocked doors.
   
2. Enter the inner ring of the third floor and you'll find data-bank-5, a large chest, some small chests, and a switch to disable the final two energy walls.

Fly Safe.