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From Error: No waypoint named "Guild Bluff Waypoint" found. Check if it has been added to the area., follow the road east along the river towards the waterfall. Cross the bridge that passes behind the waterfall, and at the north end of the bridge, head east into the cave. The entrance to the puzzle itself is just behind Urmaug.
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Head into the cave to the eastern room, where the floor slopes down and the ceiling opens up into a vertical shaft. Starting from a low rock on the east side of the room, jump from rock to rock in a clockwise spiral, eventually stopping on the tall, thin rock spire in the center of the cave.
From the tall thin rock, jump north to the tall pillar there, and jump around a few more rocks clockwise. From here, your goal is to clamber east and then north up the slope, to reach higher into the cave. Jump from ledge to ledge to keep gaining height, and eventually the cave will level out. Follow it north to reach the end of the puzzle and the Splendid Chest.
- In the Battle For Lion's Arch group instance, most of the cave Urmaug's Secret takes place in is blocked off by a rock formation not present in standard Lion's Arch. It is unknown if this is canonically true or if it was simply an obstacle placed by ArenaNet to prevent players from completing the jumping puzzle.
- There are no enemies in this jumping puzzle.