Beginner
≈ 3 hSuggested range1 h 45 min – 5 h
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Creator · SET 31385
Sea Animals: Beautiful Dolphins
Two blue dolphins leap above buildable waves and a small seabed.
- Pieces
- 542
- Release year
- 2026
- Theme
- Creator
- Set number
- 31385
- LEGO recommended age
- 9+
- LEGO retail price · Italy
- 49.99 €
Available at LEGO Italy when checked on 28 October 2026. Availability can change. Check the store for the latest information.
Retail price reported by the LEGO source for the stated market. Check the store for current price and availability; this does not establish the launch price. LEGO ↗ · Reference checked on 28 October 2026
Official English name verified at: LEGO English catalogue ↗ · Checked on 26 October 2026.
TIME TO BUILD
How long does it take to build Sea Animals: Beautiful Dolphins?
A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.
Editorial estimate · first build
Intermediate
≈ 2 hSuggested range1 h – 3 h 15 minExperienced
≈ 1 h 30 minSuggested range45 min – 2 h 15 minBased on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.
How we estimate times · sources and method
Editorial assessment of the first illustrated arrangement: Two blue dolphins leap above buildable waves and a small seabed. Coral-like details and small elements contrast with the blue water and animals. A first build following the instructions, including normal piece finding; an adult may help when needed. Breaks and subsequent play are excluded. No verified timed build: indicative values with substantial variation.
Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.
- LEGO · set-specific instructions ↗
Official name, pieces, age and imagery; no timed building data.
- LEGO · set manual ↗
Document for this set number. The duration is an editorial estimate, not a LEGO timing.
Checked: 26 October 2026 · Method v1.0 · Limited reports; not a statistical average.
BUILT BY THE COMMUNITY
Yours could be the first building time.
0 reviewed solo building times.
No solo building times have been reviewed yet. You can still find editorial estimates under Suggested times.
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How much display space does it need?
Assembled-model dimensions are not yet documented for this set. Box dimensions cannot tell you how much display space it needs.
BEYOND THE BRICKS
Did you know?
Inside the set
Curves above the water
Curved bodies rise at different heights, supported by the scene below.
LEGO sourceA colourful seabed
Coral-like details and small elements contrast with the blue water and animals.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
Mammals, not fish
Dolphins breathe air with lungs through a blowhole.
Read the full story
The blowhole allows a dolphin to breathe air at the surface. Its streamlined outline may resemble a fish, but it uses lungs rather than gills. Similar-looking shapes can occur in animals from different groups sharing an environment, without making them the same kind of animal.
Milk for their young
Like other mammals, they give birth to live young and nurse them with milk.
Read the full story
NOAA highlights live birth and milk-feeding among dolphins’ mammalian traits. Their aquatic life does not erase a relationship visible in the life cycle. Comparing a dolphin and a shark requires more than colour or silhouette: breathing and reproduction reveal deeper differences.
Expanded stories updated on 29 October 2026
Written by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.
THE COMMUNITY’S EXPERIENCE
What was it like to build?
Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.
No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.
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Building tips from the community
Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.
No approved tips yet.
Sign in to contributeSET THE MOOD
A soundtrack for your build
· Selected for the subject and atmosphere
La mer’s orchestral surges and suspended moments complement water and movement. This is a musical reading of a landscape, with quieter alternatives available.
OUR PICK
Debussy: La Mer & Nocturnes
André Previn · London Symphony Orchestra
Narrative and cinematicEditorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →
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YOUR NEXT BUILD
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Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
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1 h – 3 h 15 min
Suggested time · Intermediate
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