Beat The Diving thing and talk to captin salty in big nate.
all you have to do is find a key for the door then get thru the ninjas and one of the spies will be there
there is no key just get the camoflage suit and go to the docks
XC
on spy island you put the chameleon suit on and go to the docks and get past the B.A.D guys and get to the door
You get the key from the person next to the lab
you need a key
There is a lock on the basement door.
There is no key. Hercules breaks it open.
you use the key that the curator gives you on early poptropica and go back to the cottage and open the door with the key
it is at the lightning door
go to the docks
At the Docks on Counterfeit Island.