LEGO 42703 Building Instructions – Mermaid Roller Coaster Ride
Friends • 2026
Where can I find LEGO 42703 Mermaid Roller Coaster Ride instructions?
LEGO 42703 Mermaid Roller Coaster Ride is a 864-piece LEGO Friends set released on 1 June 2026. This page provides 3 step-by-step building instruction videos for the set with a runtime of 17 minutes and 11 seconds. The page also links to LEGO's official building instructions for this set.
Official LEGO building instructions
Open the official LEGO instruction page to select and download the available PDF manual books.
VIEW OFFICIAL LEGO MANUALSInstruction videos
LEGO 42703 set details
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Set overview
LEGO 42703 Mermaid Roller Coaster Ride is a 864-piece LEGO Friends set released in 2026 from the Amusement Park range with 5 minifigures.
What does this instruction guide include?
This page groups 3 instruction videos for this set, including Book 1 and Book 2. The featured instruction video runs for 17 minutes and 11 seconds. The combined All Books video is used as the main player, with the separate book videos kept below for reference.
LEGO 42703 questions
How many pieces does LEGO 42703 Mermaid Roller Coaster Ride have?
The set is listed with 864 pieces.
How long is the LEGO 42703 Mermaid Roller Coaster Ride instruction video?
The video runs for 17 minutes and 11 seconds. Actual hands-on building time varies.
How many LEGO 42703 Mermaid Roller Coaster Ride instruction videos are on this page?
This page links to 3 videos covering the set.
