Want to collect all the submarine parts and build the submarine in Roblox Fisch? The game requires you to collect a total of five parts to build a submarine and access the Mariana’s Veil area. This guide will walk you through the location of all the Submarine Parts in Fisch.
How To Get All Submarine Parts in Fisch

To collect all five submarine parts, you must head to the Submarine Depot at Roslit Bay, where they’ll find Dr Glimmerfin in Marianas Veil. Once you speak with this NPC, he will give you a drill that’s required to collect the following submarine parts:
- Windows
- Submarine Top
- Side Fins
- Metal Panels
- Back Fins
After getting the drill from the NPC, find the obsidian rocks which can be found right next to the NPC location. You must drill the obsidian rocks and there’s a 5% chance that you’ll obtain one of the random submarine parts.

Keep in mind that obsidian rocks respawn after a few minutes once you drill them. So there’s no shortage of rocks. If you’re having trouble finding enough obsidian rocks, try switching servers to find fresh ones. If you have a team, you can split up and drill more rocks, then trade parts later.
You must keep drilling until you obtain all five. Once you have the all five submarine parts mentioned above, head to the Dr Glimmerfin location where you’ll also find a blueprint of the submarine (a transparent floating in the air).
At this point, you must equip all the parts one by one and place them at their respective locations. Finally, you have successfully build the submarine in Fisch.
As mentioned earlier, you can now use this submarine to access the Mariana’s Veil area.