How do you open the door in Club Penguin Hidden Lake?
Tour guide The Hidden Dojo Room is a secret room within the Dojo. The only way to gain access to this room (and all others past it) is by obtaining the Wise Puffle Pin. Once obtained it can be accessed from the Dojo.
The Water Dojo is an unreleased room in Club Penguin Rewritten. It, along with Card-Jitsu Water, was originally going to be released in November 2019, but was postponed due to time constraints.
In order to access the Underwater Room, the player had to follow the Giant Squid in the first underwater level of Puffle Rescue. The squid would lead the player to a hidden entrance, and from there, they could obtain the Moss Key Pin.
How do you get a moss key?
What can you do in the Hidden Lake Key on Club Penguin?
The Hidden Lake is a subterranean lake in Club Penguin Rewritten. It opens out to the sea, and a variety of sunken treasure drifts here from underwater. Waterfalls flow here into the sea from underground reservoirs. An underwater door here leads to the Underwater, but the door can only be opened with the Moss Key Pin.