42703 · Friends

Mermaid Roller Coaster Ride

Name: Mermaid Roller Coaster Ride
Brand: LEGO
SKU: 42703-1

874 pieces2026

£71.99at Smyths Toys

£18 below RRP (20%) · RRP ~~£89.99~~

Usually £71.99–£75.00 in United Kingdom.

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In stock at 8 stores · updated 2h ago

Next best: Amazon UK £71.99 (+£0.00)

£71.99

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Where to buy9 United Kingdom stores

Smyths ToysCheapest
In stockChecked 22h ago
£71.99
was ~~£89.99~~
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Amazon UK
In stockChecked 3h ago
£71.99
was ~~£89.99~~
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Argos
In stockChecked 2h ago
£72.00
+£0.01 more
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Prices updated 2h ago. Shipping costs aren't included — check the store before you buy.

Is this a good price?

Around its usual price

£71.99 at Smyths Toys

20% below RRP13% below current market price2% below historical average

RRP (LEGO's price): £89.99
Usual price (90 days): £71.99–£75.00
Lowest we've tracked: £62.99

Lowest ever: £62.99
Usual price: £72.00

About this set

Set number: 42703
Theme: Friends
Pieces: 874
Released: 2026
Price per piece: £0.082
Status: Available

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 coaste…

Description via AG LEGO Certified Stores