The Fishing Rod is one of the four Royal Tools. It's used for Fishing.
Finding it is an objective of Merlin's quest The Royal Tools. It's assembled during the quest Fishing Expedition in the Peaceful Meadow after finding Broken Fishing Rod and delivering it to Goofy.
Each cast using the Fishing Rod uses 150 energy. By upgrading Moana's Boat the energy cost of fishing can be reduced. Each level upgraded reduces the Energy cost of Fishing using the Fishing Pole by 2% each level - totaling 20% energy cost to fishing when the boat is fully upgraded to level 10.
||Each Upgrade to Moana's Boat reduces cost by 2%, capping at 20% reduction at level 10, reducing cost by Energy (30)
The Fishing Rod does not have any available upgrades.