The Cave Maze was a series of 12 party rooms that form an underground maze. The maze was accessible through the Dock as an event that started on April 15 and ended on April 22, 2015. When completed, the Pickaxe could be picked up.
An underground "lobby", where players can see a map of the maze.
The maze end, where players can pick up the Pickaxe. Some tables and chairs are placed around, and the Earthquake Driller's machine body is used as a coffee and pizza stand.
A secret dancing room, which can be reached by going ↑←↑←↓←↑ and ↑. The players reach a cracked wall, which can be excavated by using a Hard Hat.[1]