The first Mokoko seed you can find in Gorgon’s Nest is on the southernmost part of the map. You can find the Mokoko seed next to the cannon on your left.
Now head north, past the Troll Habitat until you are on the area in between the Troll Habitat and Cliff Path. Before you head to the next area, turn right and you will see a huge tree root. You can enter the tree root and the Mokoko seed is inside.
Jump across the gap to your right and you will find another Mokoko seed to your north. Keep heading southeast in the same area and you should find the fourth Mokoko seed near the cliff.
Go to the Cliff Path and head northeast until you find a cliff you can jump. Jump across the gap and you will find two Mokoko seeds inside the small area.
From the last area, head northwest until you see some dead soldiers by the tree. The Mokoko seed is right next to the tree.
Head further north, right before you can jump to the Demon Beast nest, you should see a Mokoko seed on the cliff to your left.