Friends

Underwater Loop

A tiny amusement park ride that actually spins, wobbles, and earns its ocean theme.

Brick Rated Score

4.0/5

Set 41337 · 2019

Pieces389

Minifigs2

Year2019

Set number41337

Check price on Amazon

Affiliate link. We may earn a commission at no extra cost to you.As an Amazon Associate we earn from qualifying purchases.

The verdict

The giant crab perched on top of the ticket kiosk is what sold me on this one before I'd even opened the bag.

It's such a specific, funny build choice, and it sets the tone for a set that commits fully to its beach boardwalk premise instead of just slapping a fish sticker on a generic ride. The turtle and fish shaped seats actually spin and wobble when you turn the crank, which for 389 pieces is a real mechanical payoff, not a gimmick. I'd hand this to a builder who wants a quick, satisfying afternoon project with a working part at the end, not someone chasing a huge minifig roster.

Best for: kids and Friends collectors who want a small, playable amusement park build with a working ride mechanism

The full review

What it is

The giant crab perched on top of the ticket kiosk is what sold me on this one before I'd even opened the bag. It's such a specific, funny build choice, and it tells you immediately that this isn't a lazy reskin of a generic fairground ride. Underwater Loop is a compact amusement park stall built around a crank operated ride where three mini dolls sit in turtle and fish shaped seats that genuinely spin and wobble as you turn the handle. For 389 pieces that's a real mechanical payoff, and it's the kind of thing that gets demonstrated to every visitor who walks past the shelf.

The catch

I'll be honest about the size though. At roughly 30 dollars retail, 389 pieces is a fairly brisk build, and if you're used to bigger Friends sets this one will feel over quicker than expected. The mechanism itself is simple, once you've seen how the crank connects to the seats there isn't a second layer of engineering surprise waiting for you, so repeat builds lose some of that first time delight. It also stands alone rather than connecting neatly into a bigger Heartlake City amusement park layout, which some collectors wanted more of.

Who it's for

I'd point this at a kid or a Friends fan who wants a short, satisfying build with a toy that actually does something when it's finished, not someone hunting for a big minifig cast or a sprawling display piece. If working play features and a fun theme matter more to you than piece count, this one earns its keep. If you're chasing scale or a long build session, look toward one of the bigger amusement park sets instead.

What works

The crank mechanism genuinely spins and wobbles the turtle and fish seats, so play value matches the build
The oversized crab on the kiosk roof and the ticket booth with printed bill and coin pieces add real personality and detail for a small set
Two mini dolls, Mia and Vicky, plus a cotton candy stall give kids a complete little scene to act out

Worth knowing

At 389 pieces for around 30 dollars it's a fairly light build session, some reviewers wished it lasted longer
The ride mechanism is simple once you understand it, so the engineering thrill fades fast on a second build
It's a standalone scene rather than a modular fit with other Friends amusement park sets, so it can feel a little isolated on a shelf

Sold? Grab it.

Check price on Amazon

Affiliate link. We may earn a commission at no extra cost to you.

The parts story

What the build is actually like, and the pieces worth knowing about.

Building Underwater Loop is quick and cheerful. You start with the kiosk base, work up through the ticket counter with its printed coin and bill elements, then move to the crank mechanism that ties the whole ride together. The last stretch, attaching the turtle and fish seats and testing the spin, is the payoff moment, and it comes fast enough that younger builders won't lose steam.

The giant crab piece on the kiosk roof is the clear standout, an oversized, characterful element you don't see in many other sets, and it does a lot of work making this small set feel like a real amusement park attraction rather than a generic stall. The turtle and fish seat pieces carry the ocean theme through nicely, and the printed ticket money elements are a small but charming detail. For 389 pieces you get one genuine working mechanism, two mini dolls, and a handful of specialty parts, which is a fair trade even if the piece count itself is modest.

Fun facts

01Underwater Loop was released in 2019 as part of the Friends Amusement Park subtheme, with an original retail price of 29.99 dollars.
02The set includes two mini dolls, Mia and Vicky, riding alongside a giant crab element mounted on top of the ticket kiosk.
03The ride seats are molded in turtle and fish shapes and genuinely spin and wobble when the crank is turned, rather than just rotating flat.
04The set is now retired, and BrickEconomy lists new sealed copies trading at roughly the same value as the original retail price.