When you are playing the Snow Trekker minigame there is a coin bonus go into the water with boat mode so you don't take in water. Then you will see a coin trail follow it carefully and it will lead you to a small island with some rocks around it, but not just that you will see five 10 coins collect them and that will give you some coins to upload to your account, or if you have one.
ScreenHog and Rsnail reference
In some missions, you are required to go in G's office in the Sport Shop. Under G's pin collection are ScreenHog and Rsnail. They are Club Penguin moderators who make important posts. In this game they were made into inventions.
Scuba Diver Helmet
If you complete the task of finding all three paper boats he will reward you with a Scuba Diver Helmet!
Viking Helmet
When you are playing the mission when you are in the snow Trekker and have to find the tour guide. First just go to the water, transform into raft mode and go to the middle island and you will find him then when the mission is over he will thank you and then he will give you the viking helmet!