You have to lift up the rock that is underground.
Gadget Room!
It looks normal and a lot better. Look in the Bolier room not in the mission if you really need it.
I found it at the dock
the cap is in the corner
hidden-cant tell
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Rookie appears in 2 missions. Missing Coins & Mysterious Tremors.
easy just go to the cave and do it
the dock i have completed the mission like ten times
Right on the wall behind G in the Gadget Room.
Go to the dock and talk to the green penguin after you help him he will ask if there is anything he can do for you when he does ask for the pump.
Go to the link below for more informationP.S: I am not Mimo777