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TechWiser’s walkthrough lists 15 rubber ducks across four areas of Roblox Abyss. Collect them all, then approach the locked door in the rock mountain behind Virelia to open Bob’s secret room. The route and rewards below reflect TechWiser’s report; no official developer source was found confirming the locations or current unlock mechanics.
Before you start
TechWiser recommends upgrading your oxygen before the deeper dives and unlocking the Scientist NPC’s Teleporter to move between biomes. These are preparation tips, not confirmed requirements. Angler’s Cave is reported to become accessible after you complete the Lost Captain’s quests.
Forgotten Deep Dome: ducks 1–7
- Find the developers’ table and check the tree branch beside it.
- Look inside the container behind Billy. The duck is on a crate.
- Go behind Virelia and search the tops of the large rocks.
- Across the water from Richard, check behind the Diver NPC’s submarine.
- Starting at Billy’s container, follow the ocean cliff to its far end.
- Enter Morveth’s cave and look on the platform behind a chest. TechWiser places the cave about 200 metres deep and recommends upgraded oxygen for the dive.
- In Morveth’s cave, take the right-hand rocky path and climb to the top of the pillar-like wall.
Ancient Sands: ducks 8–10
- At Crazy Jeff’s Store, look behind the desk beside a stone pillar.
- At Grumpy Hank’s living area, check behind the crates beside the sofa.
- From Crazy Jeff’s Store, go right and dive along the rock mountain until you reach a small cave entrance. The duck is on the cave floor.
Spirit Roots: ducks 11–13
- In Spirit Root Hollow, look behind Victor’s symbol near the water barrier.
- At the Golem NPC’s cave, check the rocks beside the candles on the left, before completing the quest.
- Swim above and behind the cave, then continue toward a rocky mountain to find the duck.
Angler’s Cave: ducks 14–15
TechWiser says you must complete the Lost Captain’s quests to unlock Angler’s Cave.
- Inside the cave, search behind the Lightkeeper NPC.
- From the Lightkeeper, follow the path to the intersection and take the right-hand route. Continue past the aggressive anglerfish to a rock structure where the duck is located. TechWiser recommends good gear and health items for this deeper, darker route.
Open Bob’s secret room
After collecting all 15 ducks, return to the rock mountain behind Virelia and approach the door. TechWiser reports that the door opens then. The room reportedly lets you purchase the Bath Tube and Plunger gun, which are in-game items.
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Read TechWiser’s full duck-location guide.
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