Voidsea Outlook arrived as part of the Luna IV update in Genshin Impact, expanding the Nod-Krai region with new exploration opportunities. The area holds 30 treasure chests in total, but players hunting for the higher-value rewards will want to focus on the single Precious chest and five Remarkable chests scattered across the zone. Both chest types require specific actions to unlock, and several are gated behind World Quests that must be completed first.
Quick answer: The Precious chest in Voidsea Outlook unlocks after completing "The Last Night, the First Light" World Quest in Piramida city. The five Remarkable chests are spread throughout the area and reward Serenitea Pot furnishing blueprints.

Voidsea Outlook chest breakdown
The full chest count for Voidsea Outlook breaks down as follows:
| Chest Type | Quantity |
|---|---|
| Common | 13 |
| Exquisite | 10 |
| Precious | 1 |
| Luxurious | 1 |
| Remarkable | 5 |
Most Common and Exquisite chests appear through standard exploration activities like defeating enemies, solving environmental puzzles, or simply finding them in the open. The Precious, Luxurious, and Remarkable chests demand more deliberate effort.

Precious chest location and unlock requirement
Voidsea Outlook contains exactly one Precious chest, and it cannot be obtained through normal exploration. You must complete "The Last Night, the First Light" World Quest to unlock it. This quest takes place in Piramida city within the Voidsea Outlook area.
Upon finishing the quest, you receive multiple rewards simultaneously: the Precious chest, a Luxurious chest, an Exquisite chest, and the "Si le grain ne meurt" achievement. The chests spawn in the quest completion area, so collect them before leaving Piramida.
If you have not yet started this quest chain, look for the quest marker in Piramida city. Completing the Archon Quest for the region first is recommended, as it opens up access to various areas and quest triggers that might otherwise be locked.

Remarkable chest locations
All five Remarkable chests in Voidsea Outlook reward Serenitea Pot furnishing blueprints. These blueprints let you craft new decorations for your housing realm, making Remarkable chests particularly valuable for players invested in the Serenitea Pot system.
Remarkable chests typically appear near notable landmarks or after completing small environmental interactions. Unlike Precious chests, they are not necessarily locked behind major World Quests, though some may require clearing nearby enemies or activating mechanisms.
The Serenitea Pot itself unlocks through a side quest in Liyue, so newer players who have not yet reached that content will still collect the blueprints but cannot use them immediately.

Luxurious chests in Voidsea Outlook
While the focus here is Precious and Remarkable chests, Voidsea Outlook also contains one Luxurious chest. This chest unlocks alongside the Precious chest when you complete "The Last Night, the First Light" World Quest. Additional Luxurious chests in the broader Nod-Krai expansion are tied to other World Quests:
"To Turn Each Sin Against the Sinner" grants one Luxurious chest plus two Precious chests upon completion. "Return to Sender" and "Raven's Legacy" each provide one Luxurious chest as well. These quests span different areas of Nod-Krai, so check your quest log if you are missing Luxurious chests after fully exploring Voidsea Outlook.

Exploration strategy for 100% completion
Reaching 100% exploration in Voidsea Outlook requires collecting all 30 chests plus any Lunoculus orbs in the area. A few chests only appear after triggering specific quest lines. If you find yourself stuck at 29 or 30 chests, check whether you have started Illuga's World Quest near the Statue of the Seven in Kipumaki Cliff. This quest unlocks additional chests that do not appear on the map otherwise.
The Treasure Compass gadget for Nod-Krai helps locate remaining chests once you have completed most of the area. However, quest-locked chests will not register on the compass until their associated quests are active or complete.
Defeating enemies, following abyssal trails, and interacting with Spirebloom plants to gain Kuuvahki powers are common mechanics throughout Voidsea Outlook. Several chests require destroying Abyssal barriers using these powers, so keep an eye out for glowing plants near sealed containers.

Verifying chest collection
Open your map and check the exploration percentage for Voidsea Outlook. The percentage increases with each chest collected, Lunoculus gathered, and waypoint unlocked. If the percentage stops increasing despite finding new chests, you may have encountered a visual bug—teleporting to a different region and returning usually resolves this.
For Precious and Remarkable chests specifically, the game does not provide a dedicated tracker. You will need to manually compare your collected furnishing blueprints against the known rewards or revisit marked locations to confirm collection.
Voidsea Outlook rewards thorough exploration, but the most valuable chests require engaging with the region's World Quests rather than simply wandering the landscape. Complete "The Last Night, the First Light" early in your exploration to secure both the Precious and Luxurious chests, then sweep the area for the five Remarkable chests to round out your furnishing blueprint collection.