I know where rockhoppers key is on clubpenguin

If you want rockhoppers key to go in his room go to the coffee shop and go to the book room at the top floor. Go to where you can pick the books and choose rockhoppers journal/diary and go to the last page of the book and you will see a key click on it and press yes and then you can go in rockhoppers ship and it will let you go in and you have to wait untill 6:00 or 6:30 and you can chat with rockhopper get your picture taken with him for 20 coins and it will be your background if you choose. Oh yeah you can also get member stuff and even play the hidden tresure game at any time. Oh and the key is A pin also.