Starting in Mondstadt, go north of Stormbearer Mountains, past the Anemo Hypostasis boss, and go to the waterfall area. Drop down to where the waterfall is, and you will find a luxurious chest.
Side Quest - Time and the Wind
This area is related to "Time and the Wind" side quest. It's located at the secret island east of Starsnatch Cliff. Near the sundial that's at the center of the area, drop down into the water and you will find a small little opening that has a luxurious chest.
In the city of Mondstadt, there are 3 Luxurious chests. The first one is very close to the teleport waypoint that's on the roof of the Favonius knights building. You can see the Luxurious chest just to the side.
In front of the Cathedral
The second Luxurious is in front of the church. Go near the stairs that leads up to the church, and get close to the railings. You will see a small light when you get there. Climb up and there will be some light rings to guide you to where you should go.
Above the Cathedral
The third one is at the top of the church building, all the way in the back.
Side Quest - Break the Cemetery Sword
This Luxurious chest is from the quest "Break the Sword Cemetery Seal".
In between Wolvendom and Stormterror's Lair, there is a Luxurious chest guarded by an Eye of the Storm.
Top of Stormterror's Lair Tower
Near the end of the quest related to the area, there will be a wind upcurrent near the center of the ruins. Use the wind to fly up to the top of the tower and you will find a Luxurious chest.
West of Dawn Winery
West of Dawn Winery, and Wolvendom area, there is a Luxurious chest in the area shown in the picture above. You will have to guide some seelies to their place to reveal it.
West of Anemo Hypostasis, not far from the boss area.
Starsnatch Cliff
At Starsnatch Cliff, but not at the top mountain area.
Brightcrown Canyon
Brightcrown Canyon is East of Stormterror's Lair. The shrine is near the edge of the cliff.
North of Wolvendom
Not far north of Andrius colosseum fight in Wolvendom.
North of Statue of Seven
North of the Statue of Seven that's in the middle of Springvale, Wolvendom, and Dawn Winery.
Springvale
East of Springvale, close to the teleport waypoint.
Dadaupa Gorge
There are 3 Shrines in the Dadaupa Gorge area. All are marked on the exclamation point shown in the picture above.
Stone Gate
Entering Liyue region, this last shrine still uses Mondstadt shrine keys. In Stone Gate, head east from the teleport waypoint. It's up in the mountain area.
Comments
Anonymous
The last chest is wong. That's a liyue shrine (just went there). The real mondstadt shrine is more towards the right of that, on a hill next to the path coming out of the lake by Dawn Winery.