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Fractional Sloop · Catamaran Twin Keel · 2016–2025
The Lagoon 42 replaced the Lagoon 420-421 and was itself replaced by the Lagoon 43 in 2025.
Is it for you?
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
Light and lively — happiest day-sailing and coastal-hopping in settled weather.
The record
The complete reference set — tap any figure to switch between metric and imperial.
The family
Nearby designs by size, type, and era — worth a look alongside her.