The Harpoon, obtained from Gathering, allows the player to catch fish over time. The Harpoon can also be upgraded with Gems, each of which increases the player's Fishing xp when catching fish by 5%.
While all fish may be caught from level 1, Fishing level also increases the possibility to catch fish, which was summed up by Smitty:
The fishing level doubles your chances of catching fish at 100 compared to level 1, and everything in between is [Linear interpolation], see the formula here: File:FishLVLformula.PNG
The following Fish below may be caught with the harpoon:
| Image | Fish | Energy | Rarity |
|---|---|---|---|
|
Raw Tuna | 500 
|
Uncommon |
|
Raw Swordfish | 3 000
|
Rare |
|
Raw Manta Ray | 9 000
|
Very rare |
|
Raw Shark | 20 000
|
Mega rare |
|
Raw Whale | 40 000
|
??? |