I found one off to the right side of the caves on the Swingshot path and a second one right at the beginning of the Swingshot path latching onto the green orb right after falling down the hole. The game says there are 3 gold bolts on this level but after flying around for several minutes I've found nothing. There's no hints on the map that I can see either. I'm not even sure where to look for this gold bolt. Has anyone found it and knows where to look?

Found it. For anyone searching for this later it's on the upper path to the planet coordinates and not the lower Swingshot path. 

If you need more help (spoiler):

Check around the coordinates screen.