Underwater Adventure (21598-1) is a Minecraft LEGO set released in 2026 with 310 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Minecraft sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 3 minifigures and 119 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
2026
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Catalog scale
310 parts listed · 119 inventory lines tracked
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Minifigures
3 in this set's inventory — verify completeness when buying used
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Build manual
Digital booklet available on this page — use it to verify bag contents
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Shipping weight (est.)
~445 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Building instructions
Official LEGO instructions — read on BrickID
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Minifigures in Underwater Adventure
Parts in this set
119 parts · page 1 of 3 · updating…
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Bar Holder with Clip11090 · ×12 · Orange -
Bracket 1 x 1 - 1 x 136841 · ×2 · Light Bluish Gray -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×1 · Light Bluish Gray -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×4 · Reddish Brown -
Bracket 1 x 2 - 2 x 244728 · ×2 · Black -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×2 · Light Bluish Gray -
Brick 1 x 13005 · ×1 · Light Bluish Gray -
Brick 1 x 2 with Black and White Square print3004pr0105 · ×2 · Light Bluish Gray -
Brick 1 x 43010 · ×1 · Tan -
Brick 1 x 43010 · ×8 · Sand Green -
Brick 2 x 23003 · ×2 · White -
Brick 2 x 23003 · ×1 · Dark Bluish Gray -
Brick 2 x 23003 · ×1 · Blue -
Brick 2 x 23003 · ×2 · Dark Orange -
Brick 2 x 23003 · ×1 · Tan -
Brick 2 x 23003 · ×1 · Medium Azure -
Brick 2 x 23003 · ×2 · Yellow -
Brick 2 x 23003 · ×2 · Bright Pink -
Brick 2 x 23003 · ×8 · Sand Green -
Brick 2 x 43001 · ×2 · Yellow -
Brick 2 x 43001 · ×4 · Tan -
![Brick Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6029948.jpg)
Brick Curved 2 x 1 No Studs [1/2 Bow]11477 · ×1 · Dark Bluish Gray -
Brick Round 1 x 1 Open Stud3062b · ×1 · Trans-Clear -
Brick Round 1 x 1 Open Stud3062b · ×4 · Lime -
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×1 · Light Bluish Gray -
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×2 · Tan -
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×1 · Orange -
![Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]](https://cdn.rebrickable.com/media/parts/elements/6164329.jpg)
Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]22388 · ×1 · Trans-Light Blue -
Brick Special 1 x 1 Studs on 4 Sides4733 · ×1 · White -
Brick Special 1 x 1 with Stud on 1 Side87087 · ×4 · Black -
Brick Special 1 x 1 with Studs on 2 Adjacent Sides26604 · ×4 · Tan -
Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side32952 · ×3 · White -
Brick Special 1 x 2 with Vertical Closed Handle on Edge34816 · ×1 · Light Bluish Gray -
Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side22885 · ×1 · Light Bluish Gray -
Container Box 2 x 2 x 1 1/3 with Hinge7711 · ×1 · Medium Nougat -
Equipment Shovel Blocky18791 · ×2 · Reddish Brown -
Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/364644 · ×1 · Pearl Gold -
Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray Top15400 · ×1 · Dark Bluish Gray -
Lid for Box Box 2 x 2, Hinged7712 · ×1 · Medium Nougat -
Plant, Flower 2 x 2 Leaves - Angular4727 · ×3 · Bright Green -
Plant, Flower Stem with Bottom Bar24855 · ×2 · Green -
Plant, Flower, Plate Round 1 x 1 with 5 Petals24866 · ×2 · White -
Plant, Flower, Plate Round 1 x 1 with 5 Petals24866 · ×2 · Blue -
Plate 1 x 13024 · ×2 · Light Bluish Gray -
Plate 1 x 13024 · ×4 · Bright Pink -
Plate 1 x 13024 · ×1 · Trans-Clear -
Plate 1 x 13024 · ×1 · Orange -
Plate 1 x 1 x 2/3 with Open Stud86996 · ×4 · Dark Pink