Go to the east of the Harbor until you can see a crane. At the bottom of it, there will be a Precious Chest. Climb the stairs next to it to find your first Luxurious Chest in Liyue.
At the north of Liyue Harbor. Climb your way up to the top of the mountain to find a pillar on the top and find a rectangular hole with a torch inside. Light it to cause an upstream to show up, making you able to reach the top.
If you see a luxurious ship in the middle of the ocean, go to it. To reach it, fly from a mountain, or even swim all the way there if you need. You’ll find a luxurious chest in that ship.
The chests in the Dunyu Ruins
Solve the Dunyu Ruins puzzle to get rid of all the water in the pond. Then, go the ruins in the east and reach the second floor to find the chest in the hallway.
Once the water is no longer an issue, time to go to the west area of the ruins. This chest is also at the second floor.
There’s a barrier that surrounds a pond in the ruins. That barrier can be removed if you deliver three Seelies. Once it’s done, you’ll get another Luxury Chest.
The four chests of Tianqiu Valley Ruins
To unlock the first, go north and light the torch in the ruins. Carry the three light crystals to the middle of the ruins, solve the puzzle, and get the other three.
Wuwang Hill and Guyun Stone Forest
From Qingcu Village, head southeast. Climb the mountain, but you don’t need to go all the way to the top to find the chest. It’ll be to next to a tree in the southeast of that area, after a little fall.
After that, go to Guyun Stone Forest. You’re going to face 4 Ruin Guard to open the seal chest, so be ready. It is on an island to the south.
There’s a pirate ship that sails at the southeast of Guyun Stone Forest. One more chest will be waiting for you there.
Qingxu Pool and the Geo Torches
Use any Geo character or Geo Traveler to light up all torches of each tower to get this luxurious chest in Liyue.
From there, go to an enormous tree in Lingju Pass. There will be an elevation that you interact with. You’ll get another Luxurious chest once you do it.
Luhua Landscape’s Reward
Complete the Luhua Landscape mission after talking to Veemer in front of the Luhua Pool to get this Luxurious Chest.
Cijue Slope and the Nine Pillars of Peace
Here, you’ll find the Nine Pillars of Peace mission, in which you have to collect nine Stone of Remembrance. Once you have the stones and they’re placed on the pillars, a gate will open. Defeat the monsters to get the Luxurious Chest.
The Mystery at Guili Plains
Once you finish the Treasure Lost, Treasure Found part 2, Saraya will ask you to solve a mystery at Guili’s Plain. Once you reach the location and interact with a mechanism, defeat a Ruin Guard to get the chest.
Qingyun Peak’s Puzzle
Solve the puzzle in Qigyun Peak by pointing the bird statues toward it. It will summon an upward wind stream that you can use to reach a floating island where there is another Luxurious Chest.
Yaoguang Shoal’s stone heart
This one can only be obtained if you’re playing with a friend. The small island on the west has a heart made of rocks. Go in there with a friend in co-op mode to be rewarded with another Luxurious Chest.