Lookout Cloud Station is one of the explorable areas introduced in Honkai: Star Rail's Version 4.1 update, sitting alongside Pearluxe Tower as part of the Planarcadia region. You unlock it by progressing through the Trailblaze Mission, and once you have full access to the map, there are 17 treasure chests scattered across the zone — many of them containing Stellar Jade. A few are hidden behind interactions with disguised Furbobo creatures, so they're easy to miss if you're just running through.
Quick answer: There are 17 total treasure chests in Lookout Cloud Station, spread across seven Space Anchor teleport points. Two of them require you to interact with and defeat Furbobo creatures to claim the reward.

Lookout Cloud Station Platform (Chests 1–2)
Chest 1: Teleport to the Lookout Cloud Station Platform Space Anchor. After you spawn, turn left. The first chest is sitting beside a bench, plainly visible.
Chest 2: From the first chest, start heading out of the station area. Before you go up the stairs, look to your right. The chest is tucked behind two stalls that feature Pom-Pom figures.

Qlipoth Boulevard (Chests 3–6)
Chest 3: Teleport to the Qlipoth Boulevard Space Anchor. Walk toward the escalator, but don't step onto it. Instead, turn right — the third chest is right there.
Chest 4: From chest 3, turn right again and follow the alleyway into a smaller area. You'll find the chest on the left side, near two elderly NPCs who are standing around.

Chest 5: Head back to the Qlipoth Boulevard anchor (or just teleport). Walk forward slightly and turn left this time. Follow the path until you spot a Himeko and March 7th cardboard cutout. The chest is right next to it.
Chest 6: Return to the main area from chest 5 and take the escalators or stairs up. At the top, go left. The sixth chest is near a row of vending machines.

Astral Plaza and Harmony Station (Chests 7–9)
Chest 7: Teleport to the Astral Plaza Space Anchor. Look left immediately after spawning. The treasure chest is in front of a double door.
Chest 8: Switch to the Harmony Station anchor. After spawning, turn around and walk all the way to the end of the area. You'll encounter a Furbobo disguised as The Dahlia. Interact with it and defeat the creature — the chest reward drops after the fight.

Chest 9: From the Harmony Station anchor, head back the way you came toward the SoulGlad bottles. The chest is hiding behind the second bottle.
Jubilee Avenue (Chests 10–13)
Chest 10: Teleport to Jubilee Avenue. Walk forward a short distance, and you'll find the tenth chest beside the Nameless Wispae console.

Chest 11: Go back to the Jubilee Avenue anchor and head left. Take the stairs down and walk straight ahead. At the end of the path, the chest is behind some breakable objects — smash them to reach it.
Chest 12: From chest 11, turn around and go down the bridge using the nearby stairs. Keep walking until you reach the end. The chest is under a tree, sitting on a bench.
Chest 13: Continue along the path until you reach the restaurant area. A Furbobo is standing in front of a trash bin — talk to it, and it will run away. Walk to the south-eastern corner of the area and look for a Raccoon / Trailblazer cardboard cutout. Attack the cutout to claim your reward.

Reignbow Alley (Chests 14–15)
Chest 14: Teleport to the Reignbow Alley Space Anchor. Walk straight toward the Xianzhou Luofu area, but instead of going down the stairs, veer right. The chest is on the balcony.
Chest 15: Now go down the stairs into the main sitting area below. The chest is on the red carpet in the center of the room — hard to miss once you're at the right elevation.

Foxfolio Lookout Cloud Branch (Chests 16–17)
Chest 16: Teleport to the Foxfolio Lookout Cloud Branch Space Anchor. Walk straight ahead and enter the bookstore. The chest is in the left corner inside.
Chest 17: Use the same Space Anchor. This time, turn left after spawning. The final chest is between two tables, just a short walk from the teleport point.

All 17 chests organized by Space Anchor
| Space Anchor | Chest # | Key Landmark |
|---|---|---|
| Lookout Cloud Station Platform | 1 | Beside a bench (turn left from anchor) |
| Lookout Cloud Station Platform | 2 | Behind Pom-Pom stalls (before stairs) |
| Qlipoth Boulevard | 3 | Right of the escalator |
| Qlipoth Boulevard | 4 | Alleyway, near elderly NPCs |
| Qlipoth Boulevard | 5 | Near Himeko / March 7th cutout |
| Qlipoth Boulevard | 6 | Top of escalators, near vending machines |
| Astral Plaza | 7 | In front of a double door |
| Harmony Station | 8 | Defeat Furbobo disguised as The Dahlia |
| Harmony Station | 9 | Behind second SoulGlad bottle |
| Jubilee Avenue | 10 | Beside Nameless Wispae console |
| Jubilee Avenue | 11 | Behind breakable objects (down stairs, end of path) |
| Jubilee Avenue | 12 | Under a tree on a bench (past the bridge) |
| Jubilee Avenue | 13 | Attack Trailblazer cutout after talking to Furbobo |
| Reignbow Alley | 14 | Balcony (right instead of down stairs) |
| Reignbow Alley | 15 | Red carpet in main sitting area |
| Foxfolio Lookout Cloud Branch | 16 | Left corner inside the bookstore |
| Foxfolio Lookout Cloud Branch | 17 | Between two tables (turn left from anchor) |
Once you've opened all 17 chests, your exploration progress for Lookout Cloud Station should be at or near 100 percent — though full completion also requires finding all Wispae collectibles and Furbobo encounters in the zone. If your exploration tracker still shows a gap after grabbing every chest, double-check the Furbobo interactions at Harmony Station and the restaurant area near Jubilee Avenue, since those two are the easiest to overlook.