First built in France in 1987, it was one of the earliest large production cruising catamarans available both for private owners and for the yacht charter role.
These boats were built by Lagoon catamaran, a specialist multihull division of Jeanneau in France.
These boats were hand laid up using woven e-glass and epoxy vacuum bagged in a mold.
Some of the L55’s were also built using carbon reinforcements and Kevlar inlaid in the hulls below the waterline for abrasion resistance.
The newer model had nearly twice the displacement of the Mk.I's 13 tonnes and, with its flybridge and greater windage, was less "sporty" and more "comfortable cruiser" than the original sleek Lagoon 55.