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- Cruising Speed: 10 kn
- Beam: 29' 10''
- Hull Material: Composite
- Max Draft: 9' 2''
- Displacement: 36,376.27 lb
- Fuel Tank: 1 x 1703|liter
- Fresh Water: 1 x 1136|liter
- Holding: 1 x 379|liter
- Cabins: 3
- Heads: 2
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Owner’s Version | Carbon Mast and Boom | 2022 Yanmar Engines | Lithium and Victron Power | Replacement Standing Rigging
MOTIVATED SELLER
Introduction
BLUE MOON is the highly sought-after Owner’s Version of the Catana 581, a yacht widely respected for combining genuine offshore performance with exceptional comfort for long-distance cruising and liveaboard life.
Built using Catana’s lightweight foam-sandwich composite construction with carbon reinforcement in high-load areas, carbon spars and lifting daggerboards, she delivers the sailing performance for which the Catana name is renowned while providing spacious, practical accommodation for extended cruising.
Extensively upgraded under her current ownership, BLUE MOON benefits from twin 2022 Yanmar 110HP engines, a 2022 Onan generator, replacement standing rigging, recent Crusader sails, Gori folding propellers, an extensive Victron lithium electrical system, approximately 2.25kW of solar generation, Starlink High Performance satellite communications, watermaker and numerous mechanical, electrical and structural improvements completed during 2025 and 2026.
Following these upgrades, she completed an Atlantic crossing from Greece to Trinidad in early 2026 before continuing safely through the Caribbean to Cartagena, demonstrating the capability for which the Catana 581 has earned its reputation as one of the world’s premier bluewater performance cruising catamarans.
For buyers seeking a proven offshore cruising yacht, BLUE MOON represents an opportunity to acquire an exceptionally well-equipped Catana where much of the significant investment typically associated with a yacht of this age has already been completed.
Broker’s Comments
BLUE MOON was acquired by her current owner in August 2025 following a pre-purchase survey and has since benefited from substantial mechanical, electrical, rigging and structural investment.
Replacement standing rigging was completed in Greece during October 2025. Professional composite repairs to the port coachroof-to-bulkhead connection and an adjoining section of the forward deck were completed in May 2026 using modern epoxy, carbon fibre and Nida core construction, followed by an independent rig inspection in June 2026.
The exterior teak has also recently been resanded and stained, substantially improving its presentation.
A comprehensive documentation package accompanies the yacht, including contractor invoices, structural documentation, rigging certification and supporting records of the work completed.
Highlights
Denison Yachting - San Francisco is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Nicolle Associates - Hamble Office.
Denison Yacht Sales offers the details of this yacht in good faith but can’t guarantee the accuracy of this information nor warrant the condition of this boat for sale. This yacht for sale is offered subject to prior sale, price change, or withdrawal from that yacht market without notice. She is offered as a convenience by this yacht broker to its clients and is not intended to convey direct representation of a specific yacht for sale.
Construction and Dimensions
Accommodation
Starboard Hull – Owner’s Suite
Port Hull – Guest Accommodation
Bridgedeck Saloon
Galley and Domestic Equipment
Machinery
Generator, Electrical and Solar
The electrical system has been substantially upgraded to provide true long-range off-grid capability. A comprehensive Victron installation, large-capacity lithium battery bank and extensive solar generation allow the yacht to operate independently for extended periods while supporting domestic systems, air conditioning and onboard equipment.
Tankage and Water Systems
Rig and Deck Equipment
The Catana 581’s carbon spar package and lifting daggerboards are central to her outstanding sailing performance. BLUE MOON further benefits from replacement standing rigging completed in 2025, together with continued investment in the deck gear and steering systems.
Replacement standing rigging was professionally completed during October 2025 and certified by the attending rigger. An independent inspection carried out on 9 June 2026 confirmed the principal rig components to be in good condition, noting only localised chafe to the mainsail halyard near its dead-end fitting.
Sails
Navigation and Communications
Ground Tackle and Deck Inventory
Tender and Diving Equipment
The tender’s GRP hull requires refurbishment or replacement. The four dive cylinders require hydrostatic testing and re-certification before use.
Safety Equipment
Composite Work
Professional composite repairs were completed in May 2026 to the port coachroof-to-bulkhead connection and an adjoining section of the forward deck.
The affected structure was rebuilt using epoxy resin, unidirectional carbon fibre, Nida core, biaxial fibreglass and a gelcoat finish following the contractor’s documented lay-up schedule.
The work included removal of the affected material, replacement of approximately 0.75m² of deck core and reinforcement of the repaired structure using modern composite construction techniques.
The contractor’s detailed lay-up schedule, invoices and supporting documentation are available for inspection.
Ownership and Exclusions
BLUE MOON was owned from new in Peru before a long period of American ownership. Her current owner acquired the yacht in August 2025.
Personal effects, clothing and surfboards are excluded from the sale.
Contact our team to schedule a private showing.
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