OSRS Sailing Lockbox Guide | All Keys and Lost Schematics
© gamerblurb.com | Published on 11/27/2025 at 1:49 PM CST (USA)
Lockboxes are one of the coolest endgame mechanics in OSRS Sailing. They hide powerful ship schematics, but finding and unlocking them takes both skill and patience.
How Lockboxes Work
Each lockbox contains one of the lost shipbuilding schematics. To unlock them, you’ll first need to find the matching key and directions scroll. The key and lockbox are always located on different islands, which means a bit of back-and-forth sailing.
Opening a lockbox doesn’t use it up, but each schematic can only be claimed once. You can still view any collected ones later through your Sailing log.
Lockbox Mechanics Explained
When you inspect a lockbox, your character copies down a set of directions. These point toward another island where the corresponding key can be found. Once you’ve dug up the key, you can return to the lockbox island to open it and claim your award, which is 1 schematic and 2 burbs.
You don’t need to physically have the directions before digging up the key, so completionists can skip ahead if they already know the locations.
All Lockboxes and Keys by Level
Here’s a clean summary of every Sailing lockbox and its key location.
| Sailing Level | Schematic | Key Island | Lockbox Island |
|---|---|---|---|
| 42 | Salvaging Station Schematic | The Pandemonium | Chinchompa Island |
| 51 | Gale Catcher Schematic | The Onyx Crest | Anglers' Retreat |
| 56 | Rosewood Hull Schematic | Isle of Bones | Shimmering Atoll |
| 64 | Rosewood Cargo Hold Schematic | Minotaurs’ Rest | The Crown Jewel |
| 72 | Dragon Helm Schematic | Laguna Aurorae | Sunbleak Island |
| 73 | Dragon Salvaging Hook Schematic | Ynsdail | Lledrith Island |
| 76 | Eternal Brazier Schematic | Tear of the Soul | Buccaneers’ Haven |
| 76 | Dragon Cannon Schematic | Buccaneers’ Haven | Deepfin Point |
| 81 | Rosewood & Cotton Sails Schematic | Charred Island | Brittle Isle |
| 87 | Dragon Keel Schematic | Drumstick Isle | Grimstone |
Each schematic provides a blueprint for new ship parts that boost your performance in combat, navigation, or cargo capacity.
Best Tips for Collecting Them
Bring a spade to every key island, even when you’re not hunting schematics.
Unlock teleport options like the Sailor’s Amulet to cut travel time between key and lockbox islands.
Note that some key islands overlap with other Sailing content like trials or facilities, so multitasking helps.
Always check your Sailing log after unlocking one to confirm it registered.
Final Blurb
Lockboxes turn high-level Sailing into a real treasure hunt. Each one rewards powerful schematics and a reason to keep exploring the seas of Gielinor. Grab your keys, chart your course, and start unlocking those lost secrets of shipcraft.
FAQ
How do you start unlocking lockboxes
Sail to any lockbox island and inspect the box to get its directions, then travel to the listed key island.
Can you lose a schematic
No, once unlocked it stays permanently in your Sailing log.
Are the keys tradeable
No, all keys and schematics are untradeable and must be earned through Sailing.
What’s the hardest lockbox to reach
The Grimstone lockbox at level 87, since it’s deep in the northern sea.
Do lockboxes give XP
No direct XP, but completing them gives valuable schematics for better ships and faster Sailing training.
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