This walkthrough covers the major steps to complete Saborian Central Park, covering all the data-banks and large chests. There are many small chests scattered around as you follow along.

1. Visit the scavengers camp on the side wall of the island, check around it for a small cave entrance. Remember to press 'C' to crouch.
   
2. Visit the Bank. It has been infested with the Seraph, but you can still find some valuables.
   
3. Find the switch to enable the Vault relay:
   
   • The switch is in the Temporary Holding Area of the Bank, but the way is blocked!
     
   • You can access the Temporary Holding Area via a sink-hole from above or below the island - from above it's directly across from the Bank building in the triangular spot with the 'missing' statue, obscured by foliage.
     
   • You will also find a data-bank near the switch.
     
4. Complete the relay puzzle surrounding the island. There are a few small chests to find along the way. When you get to the broken bridge section you will find a 'hidden' data-bank in one of them.
   
5. Gain access to the Vault building by shooting the button though the broken wall.
   
6. Enter the Vault building via the elevator door and descend one level to find a data-bank and a few chests. You may have already noticed these when you shot the button to gain access to this building.
   
7. Descend to the bottom floor. If you have completed the relay puzzle then the inner-door to the Vault Cave should be open as well.
   
8. Inside the Vault Cave there is a data-bank and security turrets to defeat which will unlock a large chest.
   
9. To the side of this room (marked by a metal symbol and a light) you'll find the entrance to a grappling challenge which will take you to the final Vault room containing a data-bank, a large chest, and a few small chests.
   
10. Good Luck!