One of the achievements, Adventurous Wayfarer, requires you to visit all places including Chocobo Forests.

Note:

1. All Chocobo Forests have one hidden item in the exact same location; see the detailed map below.
2. You can summon Fat Chocobo in any Chocobo Forest by interacting with the small area at the top, then choosing Gysahl Greens.

Below are all the Chocobo Forest locations:

1. Mysidia Area (you should've visited this forest in 10. Mount Ordeals)
2. Fabul Area
3. Southern Island
4. Baron Area
5. Troia Area

Chocobo Forest

All Chocobo Forests have one hidden item:

You should've picked up the one in the Mysidia Area, so I won't list it here.

Chests/Items:

• I-030: Gysahl Greens - Chocobo Forest - Fabul Area.
• I-031: Gysahl Greens - Chocobo Forest - Southern Island.
• I-032: Gysahl Greens - Chocobo Forest - Baron Area.
• I-033: Gysahl Greens - Chocobo Forest - Troia Area.