#42675
Friends
Unicorn Cake Delivery Car
from £8
£0.13/pc
Mermaid Roller Coaster Ride
Kids' mermaid-themed roller coaster gift for girls and boys
Pieces
864
Minifigs
5
Year
2026
Theme
Friends
Set #
42703
RRP
—
Price history — last 90 days
Lowest price across listed retailers.
Lowest price
Compare prices
Prices at 1 retailers — updated daily. How we track these prices.
| Retailer | Price | |
|---|---|---|
|
LEGO
Best
Official
|
£89
+ £3 shipping
|
Cheapest Friends sets
Mermaid Roller Coaster Ride (LEGO set 42703) is a LEGO Friends set with 864 pieces. Compare LEGO prices for it across retailers and check the full price history before you buy.
The best price for Mermaid Roller Coaster Ride right now is £89 across 1 retailers — matching the official LEGO RRP of .
Brickheist tracks the price of Mermaid Roller Coaster Ride daily and keeps up to 12 months of price history. Right now it's at its all-time low of £89 — a great moment to buy.
Frequently asked questions
How much does Mermaid Roller Coaster Ride cost?
The cheapest tracked price for Mermaid Roller Coaster Ride is £89, compared across 1 retailers and updated every day on Brickheist.
What is the lowest price for Mermaid Roller Coaster Ride?
The all-time low we've recorded for Mermaid Roller Coaster Ride (set 42703) is £89. The 12-month price history is shown on this page so you can spot a genuine deal.
Where can I buy Mermaid Roller Coaster Ride the cheapest?
Brickheist compares Mermaid Roller Coaster Ride across LEGO retailers so you can buy at the lowest price. See the retailer table above for live prices, stock and shipping.