Preliminary Listing - More Photos and Walkthrough Video to Come
Step aboard “Monaco Blue,” a beautifully equipped and extensively upgraded Lagoon 450 F that is truly ready for her next adventure. Widely regarded as one of the most successful cruising catamarans ever built, the Lagoon 450 F earned its reputation through an exceptional combination of comfort, performance, and livability, with more than 850 hulls produced during its celebrated production run.
Designed for effortless long-range cruising, the 450 F offers an open, light-filled interior with excellent ventilation, spacious accommodations, and one of the most functional layouts in her class. The expansive aft cockpit flows seamlessly into the saloon, creating an inviting social space for entertaining or relaxing at anchor, while wide side decks and secure access forward make moving around the boat safe and easy underway. Up top, the flybridge helm delivers outstanding visibility and a comfortable command position in all conditions.
“Monaco Blue” is a proven bluewater cruiser with an impressive cruising pedigree. Originally based in the Mediterranean, she successfully crossed the Atlantic and has spent recent years exploring the Caribbean. She has clearly benefited from attentive ownership and thoughtful upgrades throughout her life, and she presents as a vessel prepared for immediate cruising.
Notable equipment and upgrades include:
1800W monocrystalline solar array
1200Ah lithium battery bank with Victron charging system
Full cockpit enclosure with interchangeable summer and winter panels
Seawater Pro 40G/hr watermaker (installed 2023)
Oxley Parasailor
Code 0 sail
Highfield tender with Tohatsu outboard
Barrier coated with fresh antifouling applied in 2025
Standing rigging replaced in 2024
Bulkheads inspected and reinforced per Lagoon recommendations (no issues found)
Configured in the desirable owner/family layout, “Monaco Blue” offers exceptional storage capacity and flexible accommodations ideal for extended cruising, liveaboard life, or hosting family and guests comfortably aboard.
For buyers seeking a properly equipped, well-maintained cruising catamaran with proven offshore capability, “Monaco Blue” represents an outstanding opportunity. The best-surveying cruising cats are often the ones actively used and continuously cared for by knowledgeable owners—and this vessel is an excellent example of exactly that.
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Electrical System
1800W Monocrystaline Solar Panels on integrated arch
3 x Victron SmartSolar MPPT 150/70
4 x LiTimes LifePo4 Lithium Batteries – total 1,200 ah (2024)
Gel start batteries for engines and generator
220V native onboard system
3000W Victron Quatro Inverter/Charger
Electronics
Starlink Dish seamlessly integrated into solar arch
B&G 12" Chartplotter
Garmin Chartplotter
Garmin Radar
Vesper AIS Transceiver
Raymarine VHF
Standard Horizon Portable VHF
Raymarine Autopilot w/remote control
Sails and Rigging
Standing Rigging new (2024)
New Halyard, Topping Lift, Mainsheet (2024)
Code 0
Oxley Parasailor
Furling Gennaker
Genoa UV Strip recently replaced
Mainsail serviced (2025)
2 x Electric Winches (mainsail & davits)
Bosun Chair
Engines and Generator
2 x Yanmar Diesel 54HP each (approx 3800 Hrs) Serviced regularly and detailed logs
MASE 5k Generator (870 Hrs approx)
Racor fuel polisher
Plumbing
Seawater Pro 40 GPH watermaker installed 2023 - always flushed and pickled when not in use
4 Freshwater tanks (175L ea) - 2 per hull, linked in pairs
3-compartment kitchen sink with cover board to convert to countertop
BOSCH Washer
Air Conditioning
2 x Frigomar 10k BTU Air Cons in Aft Cabins (can run off inverter)
16k BTU in Salon
Galley
2 Saloon Fridge
Cockpit fridge
Dometic freezer/cooler
BBQ
3-burner stove (with 2 propane tanks)
Full sets of high-end plates, glasses, cookware and cutlery.
BOSCH Coffee Machine
BOSCH Washing Machine
BOSCH Toaster
Water Boiler
Safety
Extensive safety inventory including Fire Extinguishers, Fire Blankets, Inflatable Life Jackets, Flares, etc.
6 pax Viking Life-Raft (2024)
Additional Information
Multiple sets of luxury microfiber bed sheets, bath towels, beach towels.
Full cockpit and helm enclosure (interchangeable summer/winter panels)
Helm Station full enclosure
New Antifouling black bottom paint (2025)
Stripped and barrier coated (2025)
2 Crew Cabins in Bow
Rocna 33kg anchor + spare anchor (delta)
80m Chain
New set of Docklines
HIGHFIELD Dinghy with storage, aluminum bottom (2023)