Friends
Mermaid Roller Coaster (42703)
Coming Saturday, August 1, 2026
Make playtime extra thrilling with the LEGO Friends Mermaid Roller Coaster Ride (42703) building set for kids ages 8 and up. This fun gift idea for girls and boys lets young builders create a working roller coaster and send it zooming around a rotating pool where beautiful mermaids swirl and perform.
This exciting, functional playset comes with lots of accessories and 5 minidolls, including Autumn, whose face can be swapped to show relaxation or excitement, and 2 mermaids, Serina and Azuria, who both have opalescent hair.
Amusement park lovers can find endless ways to enjoy this roller coaster building set with themed details at every turn, including a ticket entrance, park map, photos and lots more.
Kids can enjoy intuitive building with the LEGO Builder app, zooming and rotating with 3D instructions, while saving and tracking progress all from the app. Set contains 864 pieces.
ROLLER COASTER BUILDING SET Let the good times roll with this LEGO Friends Mermaid Roller Coaster Ride (42703), which includes 5 minidolls and lots of themed accessories
FUNCTIONAL AMUSEMENT PARK RIDE Kids can have lots of fun role-playinga thrilling day out, taking the minidolls for a ride on the working mermaid-inspired roller coaster toy
5 CHARACTERS Change up the Autumn minidolls face to reflect her excitement as she explores the park with Leo and Liann; discover 2 shimmering mermaid toys for endless fun
CREATIVE ACCESSORIES Inspire storytelling and imaginative play with themed accessories, including bubble tea, a photo strip, sea animals, a LEGO piece narwhal toy plushie and more
GIFT IDEA This mermaid toy for girls and boys makes a great holiday or birthday gift for kids ages 8 years old and up who love pretend play and roller coasters
MAKE MORE FRIENDS Discover more fun with other sets (sold separately) and the LEGO Friends: The Next Chapter online show, where kids get to know the characters of Heartlake City
A HELPING HAND Follow digital instructions in the LEGO Builder app, where kids can zoom in and rotate models using 3D instructions, track their progress and save sets as they develop newskills
DIMENSIONS The roller coaster in this 864-piece set measures over 7.5 in. (19 cm) high, 20.5 in. (52 cm) wide and 11 in. (28 cm) deep
LEGO retail prices:
$109.99
£89.99
99,99 €
C$154.99
A$149.99
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