Friends
Axolotl Adventure Boat
from £8.99
£0.09/pc
🏆 All-time low
![Mermaid Roller Coaster Ride]()
Friends
#42703 · EAN 5702018060605
864 pieces · 5 minifigs · Released 2026
£75
Cheapest at The Entertainer · Free shipping · ✓ In stock
✓ 2 retailers
✓ Prices checked today ·
Kids' mermaid-themed roller coaster gift for girls and boys
↓
Good time to buy
All-time low — the lowest price in 12 months
864
Pieces
5
Minifigs
2026
Year
≈ £0.09 per piece · 864 pieces
66
Heist
Great deal
Lowest in 6 months
Few sellers left
📄 Building instructions (LEGO.com)
📚 Set details: Brickset · Rebrickable
Compare prices
Prices at 2 retailers — last checked today. · How we track these prices.
The Entertainer
Best price
● In stock · Free shipping
£75
LEGO
Official
● In stock · + £3.95 shipping
£89.99
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
£75
Price per piece
£0.09
EAN
5702018060605
Cheapest Friends sets
The best price for Mermaid Roller Coaster Ride right now is £75 across 2 retailers — matching the official LEGO RRP of .
Right now there is a £14.99 gap between the cheapest and the most expensive of the 2 retailers: The Entertainer has the lowest price at £75, while the highest is £89.99 — a spread of 20%. Comparing before you buy genuinely pays off.
The lowest daily price has dropped 17% over the past month — from £89.99 to £75.
Right now it's at its all-time low of £75 — 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 £75, compared across 2 retailers 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 £75. The 12-month price history is shown on this page so you can spot a genuine deal.
£75
at The Entertainer