This is the project I am currently working on. It Took me a long time to build this. If you think its good diamond and sub (please). It is not finished yet but there are some hidden places in there. There is also a backstory to the Party House. If you find the hidden place it will give you a hint of what the back story might be. To Activate the boat ride push the button above the door. Enjoy!
Hint Look at the Pistons. They were not originally for pushing people off the sides.