How many pieces does the LEGO Floating Sea Otters (21366-1) have?

The LEGO Floating Sea Otters set (21366-1) contains 1234 pieces. It was released in 2026 as part of the LEGO LEGO Ideas and CUUSOO theme.

How can I find missing parts for LEGO set 21366-1?

On BrickMissing you can check which parts from the LEGO Floating Sea Otters (21366-1) you already own. Add your LEGO collection and we'll show exactly which of the 1234 pieces you're missing and which you already have.

Can I build the LEGO Floating Sea Otters with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 1234 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Floating Sea Otters from?

The LEGO Floating Sea Otters (21366-1) belongs to the LEGO LEGO Ideas and CUUSOO theme. You can browse all LEGO Ideas and CUUSOO sets on BrickMissing to find more sets from this theme.

Floating Sea Otters

21366-1 LEGO Ideas and CUUSOO 2026 1234 parts 4.4% repair risk Advanced

Immerse yourself in tranquil charm with the LEGO Ideas Floating Sea Otters (21366-1). This exquisite 2026 set invites you to craft an endearing brick-built model of a mother sea otter gracefully relaxing in water, her adorable pup nestled snugly on her belly. Marvel at the intricate details, including mama otter's poseable head, mouth, flippers, and claws, allowing for dynamic display options. You can even present her with a charming buildable clam accessory, adding a touch of realism to this serene scene. A testament to fan creativity, this set originated from a beloved fan design, making it a truly special piece of home decor for animal lovers and LEGO enthusiasts alike.

View at LEGO.com € 109,99→ lego.com

21366-1

3D build progress

Loading 3D model

Parts Inventory

🧱 1234 parts

Part	Color	Qty	LEGO price each
Plate 2 x 2 Corner 2420	Black	4×	€0,07 View at LEGO → View
Tile 1 x 4 with Groove 2431	Black	6×	€0,12 View at LEGO → View
Brick 1 x 1 3005	Black	4×	€0,07 View at LEGO → View
Brick 1 x 8 3008	Black	4×	€0,24 View at LEGO → View
Plate 2 x 4 3020	Black	2×	€0,15 View at LEGO → View
Plate 2 x 3 3021	Black	2×	€0,13 View at LEGO → View
Plate 2 x 2 3022	Black	12×	€0,10 View at LEGO → View
Plate 1 x 2 3023	Black	3×	€0,08 View at LEGO → View
Plate 1 x 1 3024	Black	4×	€0,06 View at LEGO → View
Plate 2 x 8 3034	Black	8×	€0,29 View at LEGO → View
Plate 4 x 8 3035	Black	6×	€0,46 View at LEGO → View
ROUND BRICK 1X1 3062	Black	4×	Check price → View

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Repairability

Can you fix Floating Sea Otters if a piece goes missing?

4.4%Moderate repair risk

easy to fixguard this box

12 of the 272 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

4.4%

All sets

6.7%

Hardest to replace

PLATE 3X4 W/ANGLES · Reddish Brown · only this setFRONT 4X3X2/3, W/ BOW · Tan · only this setWedge Sloped 45° 2 x 4 Triple · Reddish Brown · only this set

How we calculate this →