In Tiangong Gorge, you might notice a locked gate near a deposit of Crystal Chunks. If you peer inside, you’ll find a Luxurious Chest. To access it, you need to find a hidden entrance in the Underground Mine. You need to start The Chasm Spelunkers to access this area.
Start by heading to the area circled red in the image below. If you’re not sure how to get there, start from the Teleport Waypoint north of The Chasm: Main Mining Area and drop down from the cliff. Then, from the area circled green, head straight ahead, then jump down toward the red circle.
You can also use the Oozing Concretions north of the Main Mining Area as a landmark for finding the location. Go beyond the Oozing Concretions to find a gust of wind further down below. There are Treasure Hoarders nearby. Once you get to the gust of wind, interact with it to Move Up.
You’ll land inside the locked gate in Tiangong Gorge, which contains a Luxurious Chest to loot. Don’t forget to interact with the lever beside it to open the gate and get the Wonders of the World Achievement called All We Need Is Some Firewood and Some Vinegar…
You’ll be able to use the secret entrance from both Tiangong Gorge and the Underground Mine to traverse between the two areas.
Check out our guide on How to find and use the Treasure Map Fragments in The Chasm in Genshin Impact to find another secret entrance that connects Liyue to the Underground Mine.
