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Customer reviews for LEGO Ideas Floating Sea Otters Building Sets for Adults, 1234 pc. for
LEGO Floating Sea Otters 21366
4.6 out of 5 stars
stars
28 ratings28 reviews
  1. 5 stars79% (22)
  2. 4 stars7% (2)
  3. 3 stars14% (4)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-10 of 28 reviews
Mar 29, 2026
KyleH
5 out of 5 stars review

Fun and challenging birthday gift

[This review was collected as part of a promotion.] This LEGO Floating Sea Otters set was a fantastic gift for my 8-year-old. He loves both animals and puzzles, so this was a natural fit right out of the gate. The otter theme is really charming, and the finished build looks great on display with lots of small details like the water and accessories that bring it to life. The build itself is definitely on the more complex side, with over 1,200 pieces and a design that's officially targeted at older builders . My son did surprisingly well working through it, but there were a handful of moments where he needed my help: Mostly with trickier sections or keeping track of the larger number of pieces. That said, it actually made for a really nice collaborative experience rather than a downside. This made an excellent birthday gift and kept him engaged for quite a while. It strikes a nice balance between being challenging and rewarding, especially for kids who enjoy building and problem-solving. If your child is into animals and LEGO builds and doesn't mind a bit of complexity (or has a parent willing to jump in), this is a really fun and memorable set.

Review from LEGO
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Mar 21, 2026
MemorieC
5 out of 5 stars review

Adorable, especially for animal lovers!

[This review was collected as part of a promotion.] My son was thrilled to do this set! The instructions were detailed and easy to follow as always and the finished product is so fun. It's a bigger set so it took him a while but he was able to finish it in one night. He loved that it was a unique set and something more realistic that other sets he's gotten in the past - it's definitely more of a display piece. If you or someone you love is an animal lover this is a perfect gift for them. The baby otter is tiny and adorable - you can remove it from the mom or leave it there. Overall this set really is a great value and fun for all ages!

Review from LEGO
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Mar 25, 2026
ZimbaP
5 out of 5 stars review

Hours of fun

[This review was collected as part of a promotion.] I'll be honest, I was a little intimidated when I first saw this set as I haven't played with legos for decades and the design looks complex. I was happy to see it comes with a booklet that guides you through your build, and all the pieces come separated and numbered by bag, which is so convenient. The otter design is so cute and unique. I love the little accent pieces like the little shells and blades of grass. The pieces feel durable and good quality. This is such a great toy for adults who like to work with their hands. I'm going to have hours of entertainment with this one. I highly recommend it!

Review from LEGO
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Mar 26, 2026
LindsayM
5 out of 5 stars review

Unique Lego Set

[This review was collected as part of a promotion.] This is such an awesome idea - legos for adults. It's just like a puzzle but Lego form. We have had a family reunion and instead of a puzzle going we had this going! The sea otter is so cute and I loved the blue water. Instructions are great and on par with everything Lego puts out. Totally recommend this to any adult or bright teen/pre-teen with high level Lego skills. High quality pieces.

Review from LEGO
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Mar 4, 2026
PresidentOtter24
5 out of 5 stars review

Sea otters!

Super cute and fun build to do! The baby otter is just the icing on the cake. A great display piece for some very peaceful creatures on top of a cool water design, the clam, and of course the two otters. Would definitely recommend! So happy with the end build!

Review from LEGO
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Mar 6, 2026
EmpressFlimsyRizzo105
5 out of 5 stars review

Love it!

I loved the building process (for the most part) and finished result. It was mostly a calming process for my anxious mind. There were a few hiccups. The hands were a little troublesome to connect and the builder app was a bit confusing towards the end, but patience solved these issues. I love the overall look with the baby, without not as much. Definitely recommend.

Review from LEGO
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Mar 7, 2026
ProfessorSpecialLeek104
5 out of 5 stars review

Absolutely amazing

I love everything about this set! I was so pleased to see how it all came together. Now I want an army of otters.

Review from LEGO
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Apr 28, 2026
MadalynC
4 out of 5 stars review

Adorable and Relaxing Build with a Beautiful Displ

[This review was collected as part of a promotion.] I wasn't expecting to fall in love with a LEGO set quite like this, but the Floating Sea Otter definitely won me over. The design is absolutely adorable, especially the little pup resting on the mother's belly. It really captures that peaceful floating moment you'd see in nature. It makes for such a calming display piece once finished. The build itself is enjoyable and nicely detailed. With over 1200 pieces it feels substantial but not overwhelming. The instructions make the process smooth and with the option to use the LEGO builder app, it makes it more interactive. I also love the poseable features. You can adjust the otters head and flippers which adds a bit of personality to the final look. My only reason for 4 stars instead of 5 is that some sections felt rather repetitive, like the base and water elements. It's not a dealbreaker but it didn't take away slightly from the overall excitement of the build. That being said, once it's complete it's genuinely a standout piece. It doesn't feel like just a toy, it's more of a piece of decor that sparks conversation. If you love animals, nature or just want something a little different than typical builds, this one is definitely worth it.

Review from LEGO
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Mar 8, 2026
Kelsey
3 out of 5 stars review

The eye

It is a super cute build, pretty quick too. The only issue is the eyes. The idea for the eyes is good, but the posts are too short for them to stay in place, so they constantly fall out.

Review from LEGO
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Apr 4, 2026
HighestNosyTricycle
3 out of 5 stars review

Cute

I liked how the set turned out, with the exception of one of the black pieces, as the eyes, being too loose that it consistently falls out when the set is moved or tipped. Unfortunately I feel the only way to fix it is to glue it, which I really don't care to do. Sad.

Review from LEGO
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