How many minifigures come with the set?

It includes 5 minifigures for theme park play scenes.

How many pieces does it have?

874 pieces across 236 unique parts.

Friends

Mermaid Roller Coaster Ride

The Mermaid Roller Coaster Ride brings a theme park to Heartlake City in the LEGO® Friends line. With 874 pieces, 236 unique parts and 5 minifigures, it counts among the larger, more detailed Friends builds. Medium lavender, tan, medium azure and white set the playful colour tone.

Set number: 42703
Year: 2026
Pieces: 874
Minifigures: 5
Theme: Friends
Different parts: 236

What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 236

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Minifigures 5

Liann - White Top, Bright Light Orange Skirt fig-0157564 pieces × 1
Leo - Dark Pink Jacket, Yellow Pants fig-0157624 pieces × 1
Autumn, Blue Plaid Shirt, Medium Lavender Shorts fig-0178124 pieces × 1
Azurea fig-0178134 pieces × 1
Serina fig-0178144 pieces × 1

Description

A theme park scene

Roller coaster sets rank among the more elaborate Friends builds, since a track, a station and usually a ride vehicle all come together in one model. The mermaid theme fits neatly with the series' recurring water and beach settings, and five minifigures bring a whole group along for play scenes at once. For children drawn to theme parks and water themes, it is an obvious choice of subject with plenty of visual appeal. The set launched in 2026 as part of the current Friends line-up, fitting the range's regularly recurring theme park scenes, often expanded with new ride vehicles.

A detailed build

236 unique parts across 874 pieces shows just how varied the build is, noticeably more shape variety than simpler sets of similar size. That means frequent part changes while building and several distinct sub-assemblies, from track segments to decorative elements and the ride vehicle itself. Lavender and azure tones suggest water and fantasy, while tan and white form the structure and supports. The ratio of 236 shapes to 874 pieces sits toward the higher end of this list, explaining the varied, fine-grained building process with several distinct sub-assemblies.

Playing with five figures

Five minifigures allow group scenes rather than solo play, such as a queue, a ride and a disembarking moment happening together. That makes the set particularly suited to shared play with several children, or varied solo storytelling. The parts list on this page covers all 236 shapes by colour and quantity, useful for sorting before the build. With 5 minifigures, the set ranks among the more figure-rich Friends sets, particularly suited to group play with several children at once.

Using the parts list

The parts list on this page breaks down all 874 pieces of the Mermaid Roller Coaster Ride by colour and quantity, based on 236 unique shapes. For a set this complex, with track segments, a ride vehicle and decoration, the overview helps split the build into manageable stages. Buying secondhand, it lets you check that every track piece and minifigure accessory is present. If a small track piece goes missing during play later, the list shows exactly which shape and colour to reorder. Anyone comparing several Friends sets will find the same colour-and-quantity breakdown on each model's page on this site, useful for planning a whole Heartlake City scene.

FAQ

How many minifigures come with the set?: It includes 5 minifigures for theme park play scenes.
How many pieces does it have?: 874 pieces across 236 unique parts.
What colours dominate the set?: Medium lavender, tan, medium azure and white.