Drop into the water near the entrance and use Telekinesis to move the Trapbolt out of the way that is near the waterfall to the right. This allows you to raid the storage crate in the cave. Climb out of the water and approach the U-Invent machine, but first carefully hop up the stacked pile of crates on the right to the ledge above. Tiptoe along the beams to reach the crawlspace and collect the items inside. You can use Telekinesis to reposition the crates if you knock them over, but doing so is tricky—there’s nothing essential to your quest or to earning Achievements in the crawlspace, so don’t fret if you have trouble reaching it.
The Arcadia Glens area consists of a lengthy L-shaped boardwalk with several side-areas. There is also a Lower Concourse that consists of a partially-flooded walkway running alongside the main boardwalk. Stay above ground for now and proceed past the Bot Shutdown panel and around the bend towards the north.
Little Sister Encounter
Big Daddy: Rosie
The Little Sister and Big Daddy aren’t alone in this area which is a good thing. Take the Research Photos you need of them, then hit the Big Daddy with the Enrage plasmid to make it attack the Leadhead Splicer wandering past. Hit the Leadhead Splicer with Enrage as well, just for good measure. Now, while the two of them are attacking one another, you can stand back and hit the Rosie with your Frag Grenades.
You aren’t likely to kill the Rosie before it finishes off the Splicer, so be prepared to switch to a more conventional approach. Use Electro Bolt to stun it then unload on it with Exploding Buck from the Shotgun. It shouldn’t take much to finish it off.
The Gatherer’s Garden machine located here has a full compliment of extra tonic slots, as well as some pretty potent plasmids. Spend your newly-acquired Adam on the Electro-Bolt 2 plasmid and possibly some additional tonic slots.
Destroy the Security Camera off to the left of the Gene Bank machine and continue north towards the entrance to Rolling Hills—Atlas will radio you when you get close. Don’t head through the door just yet. Instead, search the storage room to the left. There are several vending machines located there, as well as a safe. Continue on through this room to the main storage room where another U-Invent machine is located. Just be sure to have the Research Camera ready to photograph the Houdini Splicer inside the doorway.
Safe
Contents: 20 Antipersonnel Auto Rounds, 6 Electric Buck, 77 Dollars
Go down the hall towards the storage room to the west of the Rolling Hills entrance. Once inside the first part of the room, near the viewing platforms, turn to the right and go through the crawlspace door to find this hidden safe. Use an Automatic Hack Tool if you have a few of them, as this safe can be a tough nut to crack.
