Fishathon: The North Pole

You are a fisherman who enrolled in the "Fishathon", a 7-day fishing tournament that this time takes in place in the North Pole. The prize? A mystery, no one knows but yet every last one of your rivals will do anything in their power to catch as many fish as possible and become the winner, so be prepared.
FISHING & EXPLORATION
You can fish by approaching any of the ice holes you will find in the terrain. Each fishing session will deplete a portion of your stamina and a dungeon crawler minigame will start. Your goal will be to collect as much treasure(fish) as you can while avoiding traps and other dangers and complete the level before time runs out.
Exploration is also a very crucial part of the game because by exploring, you can find secrets and items that will get you an advantage in the tournament.
UPGRADES
You can buy tips from the Captain on how to improve your fishing skills and catch more fish, the only thing he asks in return is a part of the very same fish that you need to win. Why does it take fish and not money? Well first of all because in the North Pole there isn't much use for money. Second, because those pesky penguins keep stealing all of his fish.