Grand Ocean Yacht Charter in Caribbean, East Mediterranean, Indian Ocean, West Mediterranean

About Grand Ocean

Crew

First Officer: Marios Stefas

Marios brings over two decades of maritime expertise spanning cruise ships, military and passenger vessels, and elite motor yachts. Holding a Captain Class A’ Certificate, he is extensively qualified in safety and firefighting, ISM/ISPS compliance, ECDIS navigation systems, bridge resource management, and advanced medical care.

Having already served as Chief Officer and Relief Captain on M/Y Grand Ocean, Marios possesses an in-depth understanding of the yacht’s operations, standards, and culture. His leadership blends big ship discipline with superyacht finesse, inspiring deck teams through calm authority while maintaining a strong owner and guest-centric mindset.

Recognized for his precision, composure, and commitment to excellence, Marios consistently elevates safety, service, and operational performance, both on deck and on the bridge.

Previous yacht experience: M/Y O’MEGA, M/Y O’PTASIA, M/Y ANCALLIA, M/Y BLISS, among others.

Second Officer: Vagelis Pefanis

Vagelis is a highly experienced second officer with over 30 years of maritime experience across yachting, diving, and advanced water sports operations. Holding a Captain Class C (Master 500 GT) license and RYA Yachtmaster Offshore, he brings strong bridge competence combined with exceptional hands-on operational expertise.

A master commercial diver, CMAS Course Director, and PADI Master Scuba Diver Trainer, Vangelis is also an RYA powerboat and personal watercraft instructor, as well as a certified water ski instructor. His background allows him to seamlessly support bridge operations while overseeing safe, professional diving and water sports activities at the highest standards.

Vangelis is known for his discipline, reliability, and calm professionalism. He operates with precision within the chain of command and contributes directly to safe operations and a refined experience.

Previous yacht experience: M/Y Grand Ocean, M/Y O'MEGA, M/Y NOURAH OF RIYAD

Chief Engineer: Kosmas Kotsonis

Kosmas brings over 15 years of worldwide experience as a Chief Engineer, with a proven track record across large yachts and high-demand charters. Highly skilled in managing engineering teams, safety systems and protocols, regulatory compliance, and all aspects of technical operations and maintenance, he is instrumental in ensuring smooth and efficient yacht performance. Known for his proactive approach and meticulous attention to detail,

Kosmas operates with a strong operational mindset that guarantees reliability behind the scenes. His contribution is fundamental to delivering a seamless, five-star experience for owners and charter guests alike.

Previous yacht experience: M/Y Marquise, M/Y Chakra, M/Y Omnia, M/Y Turama.

Grand Ocean Yacht Charter is a 278' superyacht built by Blohm & Voss in 1990. She sleeps 24 and holds 28 crew and is located in Caribbean, East Mediterranean, Indian Ocean, West Mediterranean and Caribbean, East Mediterranean, Indian Ocean, West Mediterranean. She can be booked for a private luxury charter at a rate of $948,317 per week. Please check with your Denison Charter Specialist for more info.

For a full list of all available amenities, entertainment facilities, tenders and toys, please inquire.