How to Complete Side Quest: Angler's Nightmare in Final Fantasy XV and Get the Best Fishing Rod Tranquility?
Step 1
You will need to get info from Navyth about Devil of the Cygillan.
Step 2
Go to Galdin Quay and meet Navyth again.
Step 3
Start Navyth’s 4th (and last) Side quest.
Step 4
Make your way to the nearby pier and start fishing.
Step 5
You can use the “Burrower: Abyss worm” Lure.
Step 6
You have to catch “Murk Grouper”.
Step 7
After catching the fish, take it to Navyth to get the best fishing Red.
Step 8
The best Fishing Rod called Tranquility is obtained now.