Guys, I'm stuck on the ruins level where you have to get the 6 spaceship parts. I've got 5 of them but the last one is killing me.

Here are the ones I have as best as I can remember:
* Water cave, part on land at end of cave
* one of top of spire
* one from metal slide you walk up
* one from area where you swing on the 2 floating pods
* one on the ledge that you get to by climbing up, above the escape pod

What am I missing?

I see the area separated from the main part by a ravine and the birds flying over there but I can't find any way to get there.

NeoGaf had the answer. This isn't a spoiler so I'll just post it in plain text.

When you see the 3 blue guys, hold down the triangle and select "follow" from the menu. That should have been a lot more obvious.

NeoGaf had the answer. This isn't a spoiler so I'll just post it in plain text.

When you see the 3 blue guys, hold down the triangle and select "follow" from the menu. That should have been a lot more obvious.

Use the MAP it shows the location of all the pieces. Press Select. You might have to sue your slingshot