Coastal Region:
1. Grass bravery; near T2 crystal challenge.
2. Grass bravery; just south of NE T1 condor challenge.
3. Waterfall bravery; behind NW waterfall.
4. Water bravery; up lookout ledge above paddock.
5. Up lookout path above T1 mask challenge, SW corner.

Plain Region:
1. Waterfall bravery; behind N waterfall.
2. Grass bravery; along path starting next to E exit.

Total: 3 Coastal pieces, 3 Plain pieces, 1 Canyon piece.

I've seen other likely locations in Plain, but I don't have high enough jump or herd bravery to get there.
1. Path starting near T4 race challenge.
2. Path starting N of competition gate.
3. Loop in NW corner.
4. House path near T2 crystal challenge.