If you mean on Counterfeit Island, they are in a trash can a little past the tour guide. Click on it, remove all the crumbled up pieces of paper out of the way, and you will find the tickets at the bottom. After that, give him the tickets back and you can have one in return to go on the tour.
In the trash can
In the garbage can
You get them from the trash can.
there are no tickets on cryptids island try counterfit island
they are in the trash can downtown.
The guy in the Internet Cafe
dial the number on the shovel in your mobile phone
They're in the trash can
in the rubbish bin by the tunnel
You get them after you beat the guys at darts in the pub.
Find the tickets at the bottom of a trash can and give one to the man in the cafe and use one to go on the tour.
look for 2 bins to the left of 'all that jazz cafe' the one to the right has two tickets at the bottom.