To find the Club Penguin Dojo do the following:
Step 1. Click on the Map icon in the lower left corner.
Step 2. Find and click on the snow capped mountain. (Circled in red in the picture above).
YOU ARE NOW IN THE DOJO!
Do you know what a Dojo is? It's a school or practice hall where karate, judo, or other martial arts are taught.
But I bet you already knew that. Right?