Mermaid Roller Coaster Ride

Mermaid Roller Coaster Ride (42703-1) is a set in the Friends theme, released in 2026. It has 854 pieces and 5 minifigures.

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Number:42703-1
Released:June 2026
Pieces:854
Box size:54 × 28.2 × 7.9 cm
Theme:Friends

Box size and weight as measured by Brickset.

In numbers

Over the last 30 days the lowest shop price recorded for this set was 75.67 USD, taken from 30 days with a price on record.

Since 9/25/2026 the lowest shop price has fallen from 88.40 USD to 76.01 USD, by 14 % (based on 41 days with a price on record).

LEGO expects to retire this set in December 2027.

Product details

Number: 42703-1
Name: Mermaid Roller Coaster Ride
Theme: Friends
Released: June 2026
Launched: June 2026
Retires: December 2027 (expected)
Pieces: 854
Minifigures: 5
RRP: ≈ 111.22 USD (154.99 CAD) (Canada)≈ 112.66 USD (99.99 EUR) (Germany)≈ 121.49 USD (89.99 GBP) (United Kingdom)109.99 USD (United States)
Price per piece: ≈ 0.130 USD (0.181 CAD) (Canada)≈ 0.132 USD (0.117 EUR) (Germany)≈ 0.142 USD (0.105 GBP) (United Kingdom)0.129 USD (United States)
Best price (30 days): 75.67 USD
Price per piece (best offer): 0.089 USD
Barcodes from shop data, not confirmed: EAN-13 5702018060605

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

BrickLink market data

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View the price guide on BrickLink

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Description from LEGO.com

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

Source: LEGO Shop Advertising

Can I build this?

Check this set against the parts you already own.

We count your loose parts and the copies you own,
suggest the fewest copies to open,
and list what is still missing.

Pricing

Best price ever≈ 75.67 USD (67.99 EUR) Advertising Sealed · gross · Joybuy (DE) · seen 10/29/2026

Current best offer≈ 76.01 USD (67.99 EUR) Advertising Sealed · gross · Joybuy (DE) · seen 11/3/2026

Price history

Lowest shop price now76.01 USD
Lowest ever 75.67 USD

Each day's lowest price among the shops' current offers, including VAT. A price in another currency is converted at the ECB reference rate of its day.

Monthly lows as a table

Month	Lowest price
November 2026	75.96 USD
October 2026	75.67 USD
September 2026	88.02 USD

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Price statistics by condition

Nobody has sold this set recently.

Sources Proshop: 40 · idee+spiel: 40 · LEGO® Shop (FR): 34 · LEGO® Shop (BR): 33 · Thalia: 28 · LEGO® Shop (DE): 27 · LEGO® Shop (AT): 26 · LEGO® Shop (BE): 26 · LEGO® Shop (CH): 26 · LEGO® Shop (CZ): 26 · LEGO® Shop (DK): 26 · LEGO® Shop (GB): 26 · LEGO® Shop (ES): 25 · LEGO® Shop (FI): 25 · LEGO® Shop (GR): 25 · LEGO® Shop (HU): 25 · LEGO® Shop (IE): 25 · LEGO® Shop (IT): 25 · LEGO® Shop (LU): 25 · LEGO® Shop (NL): 25 · LEGO® Shop (NO): 25 · LEGO® Shop (PL): 25 · LEGO® Shop (PT): 25 · LEGO® Shop (RO): 25 · LEGO® Shop (SE): 25 · LEGO® Shop (SK): 25 · The Entertainer: 22 · Orell Füssli: 21 · Thalia (AT): 19 · bücher.de: 18 · MediaMarkt (AT): 13 · OTTO: 13 · Joybuy (DE): 11 · Conrad (DE): 6 · BRICKMO: 2

Where these prices come from

On eBay

The cheapest eBay listings we saw in the last seven days. They are sellers' asking prices, so they are not in the shop price list or the best offer.

We have not seen a current eBay listing for this set.

Recommended retail price

What LEGO published as the recommended retail price, market by market, in that market's own currency. No market's price is ever derived from another's.

Canada ≈ 111.22 USD (154.99 CAD) unknown tax basis Available since 5/3/2026 — still on sale as far as we know.Recorded by BrickDb since 10/16/2026

Germany ≈ 112.66 USD (99.99 EUR) gross Available since 5/3/2026 — still on sale as far as we know.Recorded by BrickDb since 10/16/2026

United Kingdom ≈ 121.49 USD (89.99 GBP) gross Available since 5/3/2026 — still on sale as far as we know.Recorded by BrickDb since 10/16/2026

United States 109.99 USD net Available since 5/3/2026 — still on sale as far as we know.Recorded by BrickDb since 10/16/2026

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Building instructions

All building instructions for this set on LEGO.com

Parts in this set

236 inventory lines

Catalogue image of the part Sticker Sheet for Set 42703-1

Sticker Sheet for Set 42703-1 10116513· [No Color/Any Color]

×1

Catalogue image of the part Brick Special 1 x 2 with 2 Studs on 1 Side

Brick Special 1 x 2 with 2 Studs on 1 Side 11211· Bright Pink

×1

Brick Special 1 x 2 with 2 Studs on 1 Side 11211· Light Bluish Gray

×5

Plate 3 x 3 11212· Tan

×4

Catalogue image of the part Plate Round 6 x 6 with Hole

Plate Round 6 x 6 with Hole 11213· Tan

×2

Catalogue image of the part Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom

Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom 11215· Medium Azure

×3

Catalogue image of the part Tile Round 1 x 2

Tile Round 1 x 2 1126· Nougat

×8

Catalogue image of the part Brick Curved 2 x 1 No Studs [1/2 Bow]

Brick Curved 2 x 1 No Studs [1/2 Bow] 11477· Medium Azure

×6

Catalogue image of the part Tap 1 x 2 with Dual Handles, Small

Tap 1 x 2 with Dual Handles, Small 13770· Pearl Gold

×1

Catalogue image of the part Plate Special 1 x 2 with 5.9mm Centre Side Towball

Plate Special 1 x 2 with 5.9mm Centre Side Towball 14417· Dark Bluish Gray

×3

Catalogue image of the part Tile Round 2 x 2 with Bottom Stud Holder

Tile Round 2 x 2 with Bottom Stud Holder 14769· Lavender

×2

Catalogue image of the part Road Sign Clip-on 2 x 2 Square [Thick Open O Clip]

Road Sign Clip-on 2 x 2 Square [Thick Open O Clip] 15210· Black

×1

Catalogue image of the part Plant, Leaves, Round 2 x 2 x 2/3 with + Axle Hole and 4 Leaf Extensions

Plant, Leaves, Round 2 x 2 x 2/3 with + Axle Hole and 4 Leaf Extensions 15469· Bright Light Orange

×1

Catalogue image of the part Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]

Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] 15672· Medium Lavender

×2

Catalogue image of the part Tile Special 1 x 1 with Clip with Rounded Edges

Tile Special 1 x 1 with Clip with Rounded Edges 15712· Bright Light Yellow

×6

Tile Special 1 x 1 with Clip with Rounded Edges 15712· Pearl Gold

×1

5 minifigures

Minifigures in this set

Catalogue image of the minifigure Autumn, Blue Plaid Shirt, Medium Lavender Shorts

Same theme, piece count within 15 %

Similar sets

Mermaid Roller Coaster Ride

In numbers

Product details

BrickLink market data

Description from LEGO.com

Can I build this?

Pricing

Price history

Latest price from each shop

On eBay

Recommended retail price

Building instructions

Parts in this set

Minifigures in this set

Autumn, Blue Plaid Shirt, Medium Lavender Shorts

Azurea

Leo - Dark Pink Jacket, Yellow Pants

Liann - White Top, Bright Light Orange Skirt

Serina

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