Friends
Puppy Playground
from £7
£0.11/pc
🏆 All-time low
![Mermaid Roller Coaster Ride]()
Friends
#42703 · EAN 5702018060605
864 pieces · 5 minifigs · Released 2026
Kids' mermaid-themed roller coaster gift for girls and boys
£89
Cheapest at LEGO · + £3 shipping (£92 total) · ✓ In stock
✓ 1 retailers
✓ Updated daily
864
Pieces
5
Minifigs
2026
Year
≈ £0.10 per piece · 864 pieces
68
Heist
Great deal
Lowest in 6 months
Few sellers left
Compare prices
Prices at 1 retailers — updated daily. How we track these prices.
LEGO
Best price
Official
● In stock · + £3 shipping (£92 total)
£89
Price history — last 90 days
Lowest price across listed retailers.
Lowest price
Specifications
Set #
42703
Theme
Friends
Pieces
864
Minifigs
5
Year
2026
Status
In production
All-time low
£89
Price per piece
£0.10
EAN
5702018060605
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 .
The lowest daily price has held steady around £89 over the past month.
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.
£89
at LEGO