Sixty feet overall, 29 tonnes light, and a self-tacking jib. The 55 is the point in the range where a catamaran stops being a big boat and becomes a home that travels — the interior volume of a small house, tankage for genuine distance, and a rig deliberately kept simple enough for an owner and a partner to handle between islands.

Three boats have carried the number 55. VPLP drew the 1987 original, which Lagoon now lists under Heritage and which ran to only twenty hulls in a decade; the current boat took the name back in 2021, after the 52. She keeps a self-tacking jib as standard, with a high-roach mainsail and an optional square top, and the working sails are handled from winches grouped at the mast foot. The forward cockpit sits level with the trampoline rather than recessed into the foredeck, and the coachroof carries large opening windows — which matters more than it sounds at anchor in the tropics.

Performance is unhurried and honest about it. In under nine knots of breeze a tested boat reached at five and a half to six and a half knots under Code 0 and made about five knots upwind at forty degrees apparent; she wants either a proper breeze or her light sails to get going. The starboard flybridge helm gives a wide field of view for close-quarters work. Lagoon now presents her as the 55 Millenium, with four-, five- and six-cabin lower decks and matching saloons. The Millenium itself — six equal cabins, extra-large central galley — is plainly aimed at charter; private buyers generally take four.