Customer reviews from LEGO
LEGO - Ideas Floating Sea Otters Building Sets for Adults - 21366
Average customer rating
4.6
(26 Reviews)
Rating breakdown 26 reviews
5 Stars
20
4 Stars
2
3 Stars
4
2 Stars
0
1 Star
0
88%of customers recommend this product.
(
15 out of
17)
Customer Reviews for LEGO - Ideas Floating Sea Otters Building Sets for Adults - 21366
Customer Rating
5
Fun and challenging birthday gift
on March 29, 2026
Posted by: KyleH
[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.
Written by a customer while visiting influenster.com
Customer Rating
5
Adorable, especially for animal lovers!
on March 21, 2026
Posted by: MemorieC
[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!
Written by a customer while visiting influenster.com
Customer Rating
5
Absolutely amazing
on March 7, 2026
Posted by: ProfessorSpecialLeek104
Verified Purchase:No
I love everything about this set! I was so pleased to see how it all came together. Now I want an army of otters.
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5
Adorable & enjoyable
on March 8, 2026
Posted by: Kiroznen
Verified Purchase:No
I pre-ordered this set as soon as I found it and I have absolutely no regrets. This was one of my favorite sets to build
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5
Double Trouble!
on April 9, 2026
Posted by: Dhovin
Verified Purchase:No
I love this so much! I bought two of them and put them together!
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5
Just so cute
on March 8, 2026
Posted by: DianeK
Verified Purchase:No
This sea otter is so cute It was enjoyable to build and easy too. I love the baby otter and it’s a nice touch that the baby can be removed or leave it with mama. I saw this set and had to have it. It doesn’t disappoint.
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
3
Cute
on April 4, 2026
Posted by: HighestNosyTricycle
Verified Purchase:No
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.
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
4
Adorable and Relaxing Build with a Beautiful Displ
on April 27, 2026
Posted by: MadalynC
[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.
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.
Written by a customer while visiting influenster.com