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Set 10404 Ocean's Bottom
Classic

Ocean's Bottom

Set 10404 Ocean's Bottom is a LEGO® Classic set built around an underwater theme, offering 579 pieces without a single fixed model to follow. Two minifigures come along for the ride, giving builders a starting point for their own ocean-floor scenes rather than one prescribed build.

Set number
10404
Year
2018
Pieces
579
Minifigures
2
Theme
Classic
Different parts
212
What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 212

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Spare parts (17)

These extra parts come with the set in case one gets lost.

Minifigures 2

Description

Open-ended building, ocean style

Classic sets differ from themed LEGO® ranges in one key way: instead of one instruction booklet for a single build, they hand you a box of parts organised loosely around an idea – here, the ocean floor. Ocean's Bottom uses 579 pieces across 212 unique parts to give builders enough raw material for several smaller creations rather than one large model, whether that's fish, coral, a shipwreck or something entirely your own. That open format suits anyone who enjoys designing their own builds more than following someone else's steps from start to finish.

A palette built for sea life, not just sea

Rather than leaning on blue, Ocean's Bottom pairs light bluish grey with orange, yellow and white – colours that read as sand, rock and brightly coloured fish rather than open water. Light bluish grey most likely forms rock and seabed elements, while the orange and yellow pieces stand in for reef fish and coral accents, with white covering smaller highlights. Sorting the 212 unique parts by colour before building makes it much easier to see what belongs where. The colour breakdown on this page lists every shade in the set, useful for tracking down a specific piece later.

Two minifigures, endless scenes

Having two minifigures puts Ocean's Bottom a step ahead of many Classic sets, which often skip figures altogether. Here they fit the diving and exploration theme neatly, giving builders characters to place among their own fish, wrecks and coral once the main pieces are sorted. That turns the set from a pure building exercise into something closer to a small play scene, one that keeps changing as new creations replace old ones. It's a detail that matters more for younger builders looking for a story alongside the bricks.

Why the parts list stands in for instructions

Because Ocean's Bottom doesn't commit to one fixed model, the full parts list on this page effectively replaces the missing single instruction booklet. It catalogues all 212 unique elements individually, making it easy to spot specialised shapes – curved pieces for waves or fins, for instance – before deciding what to build next. That's useful for planning a build in advance, and just as handy later if a piece goes missing or you want matching parts for another ocean-themed creation.

FAQ

How many minifigures come with Ocean's Bottom?
The set includes two minifigures, which fit its diving and underwater exploration theme.
Does Ocean's Bottom follow one fixed building instruction?
No, as a LEGO® Classic set it's designed for open-ended building around an ocean theme rather than a single prescribed model.
What colours make up set 10404?
Light bluish grey, orange, yellow and white dominate, forming a sand-and-reef palette rather than the blue you might expect for an ocean set.

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