Now Ford Cruller stops you and gives you the Scavenger Hunt List! (see Scavenger Hunt section for more details). With that in hand it's time to do some optional exploration of the Main Campgrounds.
I'm going to start by heading around the fence to the left and you'll come to a speaker pole you can climb up with a Psi-Card at the top. Now from up here you can jump onto the roof of the big building right next to you where there is a full Psi-Challenge Marker. Now if you go off the side of the roof opposite of where you got on you'll see another Psi-Card in sight on a tight rope. Grab the card and head across the rope where another Psi-Card is on top of this speaker pole.
Head back across this rope to the roof and when you get there straight in front of you there is another roof (reddish brown color) sticking out from underneath the green one. Jump onto there and go under the green roof to get another Psi-Card. Then jump out from under here towards the front of this building to land on a tight rope right next to another Psi-Card. This rope connects the speaker pole we started on to another one, head right to that other one with the two happy campers from Basic Braining and another Psi-Card.
Now jump straight off this pole in the direction you were facing walking to it on the rope and there is a Psi-Card behind a tree up on the big rock. Now walk off this towards the building and head left down the path and you'll come to where a bridge type walkway is on your right, jump over it and you'll see a Psi-Card on your right kind of underneath it. While you're here you can go up this bridge into the Lodge where Cruller's shop is located (see shop section for details on buying stuff). For now I recommend picking up at least 2 PSI-Cores, you can't really get anything else yet.
Now get back on the path and head down it some more the same way you were going and you'll come to a tree stump off to your left a bit you can jump in that will take you to the Underground Transit System (see UTS section).
Continue down the path a ways and you'll come to a fairly obvious Psi-Card on a rock on your right, this will give you enough to complete yet another Psi-Challenge Marker! (after buying 2 cores of course). Down further there is another UTS tree stump, if you need it for whatever. Straight ahead is the parking lot, on one of the tree curbs to the left is a Psi-Card.
In the next spot there is a car parked there, behind it there is a stump sign sticking out of the ground, jump on top of that then on top of the car and the roof will bounce you up into another Psi-Card. On the other side of the parking lot there is a basketball hoop with a rock next to it. Jump up on the rock then jump on top of the rim of the hoop for another Psi-Card. The last one here is on the stump in the middle, but we can't jump high enough right now so we'll have to come back for that.
Now head back out of the parking lot and the path branches, right is where we came from so head left into the Reception Area.