Stelios is an energetic, hands-on, and highly capable Bosun with solid experience onboard both motor yachts and commercial vessels. With a strong background in deck operations and a genuine passion for the sea, he brings excellent seamanship, leadership potential, and a proactive attitude to every program.
Having served onboard yachts up to 50m, including M/Y OASIS, M/Y BELLITA, and M/Y SILY, Stelios has developed strong expertise in tender handling, watersports operations, deck maintenance, mooring procedures, and overall exterior presentation. His experience as a Deck Cadet and AB has further strengthened his technical understanding and disciplined work ethic.
A certified Open Water Scuba Instructor, Freediver Instructor, Emergency First Response Instructor, and Firefighter, Stelios combines safety awareness with an adventurous spirit and excellent physical stamina. His strong sporting background, including rowing achievements and martial arts, reflects his teamwork mentality, dedication, and resilience under pressure.
Friendly, reliable, and hardworking, Stelios is a valued crew member who thrives in dynamic environments and works seamlessly alongside both guests and crew to ensure smooth yacht operations and an exceptional onboard experience.
Languages: Greek, English
Previous Yachts: M/Y OASIS, M/Y BELLITA, M/Y SALCA, M/Y SILY, AQUA JEWEL, EUROCHAMPION JET, SUPER RUNNER JET 2
Stelios Triantafyllou
Bosun
With over 10 years of yachting experience, Athina brings exceptional professionalism, attention to detail, and a deep commitment to delivering five-star service onboard M/Y OASIS. Her extensive background as a stewardess has equipped her with the skills to maintain impeccable standards of luxury, organization, and hospitality in every aspect of interior management.
Athina has completed multiple specialized training programs, including Guest Wine, Bartending and Mixology Introduction, Yacht Interior Basic Food Service, Yacht Interior Introduction Module, and Silver Service. She also holds Barista and Level 2 Wine Certificates from WCPS, along with a Skipper’s Sailing Diploma—further enhancing her well-rounded expertise in guest service and operations.
Recognized for her reliability, efficiency, and warm personality, Athina ensures guests feel comfortable, well-cared-for, and truly at home during their time onboard. Outside of yachting, she enjoys cooking, music, traveling, and reading.
Languages: Greek, English
Previous Yachts: M/Y MIA RAMA, M/Y NAMASTE, M/Y O’NATALINA, M/Y OMEGA

Athina Seresli
Chief steward/ess
Dimitris is a passionate and talented chef who graduated in 2006 from Le Monde Institute of Tourism Studies with a degree in Culinary Arts. Before joining the yachting industry, he gained valuable experience working in numerous luxury hotels, fine-dining restaurants, and catering establishments, where he developed a refined culinary style and deep understanding of hospitality.
Specializing in Mediterranean cuisine—with a particular flair for Italian and Greek gastronomy—Dimitris combines creativity with authenticity to deliver dishes that delight even the most discerning palates. He has also attended specialized seminars on Private and Yacht Cheffing, broadening his expertise in bespoke onboard dining experiences.
Renowned for his signature Lobster Pasta, Dimitris approaches every meal as an opportunity to make guests feel at home while offering an unforgettable gastronomic experience. Outside of the galley, he enjoys spending quality time with his family.
Languages: Greek, English
Previous Yachts: M/Y SUMMER DREAMS, M/Y THIS IS MINE, M/Y GEEPEE

Dimitris Gkaveras
Chef
Christina is a polished, service-oriented, and highly personable Stewardess with a strong background in hospitality, customer service, and aviation. With many years of experience in premium guest-facing roles, she brings professionalism, attention to detail, and a naturally warm approach to onboard service.
Her extensive career as a Flight Attendant with leading airlines including Aegean Airlines, Viking, and Athens Airways has equipped her with exceptional guest care skills, safety awareness, adaptability, and the ability to perform calmly and efficiently in fast-paced environments. Her background in customer service and premium hospitality translates seamlessly into the yachting industry.
Christina holds training in silver service, hotel management, wine knowledge, and specialty coffee service, complementing her strong service standards and passion for delivering memorable guest experiences. Organized, well-presented, and highly attentive, she takes pride in maintaining immaculate interior spaces and ensuring guests feel welcomed and cared for throughout their time onboard.
A dedicated team player with a positive attitude and strong interpersonal skills, Christina combines hospitality expertise with a genuine passion for service, making her a valuable addition to the crew onboard OASIS.
Languages: Greek, English, German
Christina Rillou
Stewardess
Captain Nikos is a seasoned maritime professional whose career spans over four decades, beginning in 1981. Holding an A’ Class Captain’s Diploma, he has logged countless sea miles navigating commercial vessels across the Atlantic, Pacific, Indian Ocean, and the Mediterranean Sea.
For the past 24 years, he has been a dedicated figure in the yachting industry, with nearly half of that time spent with the family that currently owns M/Y OASIS. His journey with the yacht began in 2015, following its acquisition, and he has since played an integral role in maintaining its exceptional standards of safety, service, and performance.
With deep knowledge of the Greek coasts and islands, Captain Nikos curates bespoke itineraries and ensures smooth, secure, and memorable journeys for his guests. His passion lies in sharing Greece’s hidden gems and transforming every voyage into an unforgettable experience.
Languages: Greek, English
Previous Yachts: M/Y ARMONIA, M/Y ALLEGRA

Nikos Manouselis
Captain
Angelos is a dedicated and skilled maritime professional who brings both experience and precision to his role as First Officer onboard M/Y OASIS. A graduate of the Merchant Marine Academy of Epirus, he holds a B’ Class Captain’s License and has built a solid career spanning merchant shipping and the yachting industry.
Angelos combines strong navigational skills with extensive hands-on experience in vessel operations, safety procedures, and crew coordination. His professional background includes service on both private and charter yachts, where he developed a reputation for reliability, attention to detail, and calm leadership.
With a deep commitment to safety and service excellence, Angelos ensures smooth day-to-day operations and contributes to the overall success of every charter, providing guests with a secure and enjoyable experience at sea.
Languages: Greek, English
Previous Yachts: M/Y ANCALLIA, M/Y FAIR LADY

Angelos Bounos
First Officer
Themis is an A-Class Engineer with extensive experience in the maritime industry. His career began aboard passenger vessels, where he developed strong technical foundations before transitioning to the yachting sector in 2008. Since then, he has been dedicated to maintaining peak yacht performance and ensuring safe, efficient operations at sea.
A highly skilled and methodical professional, Themis is recognized for his exceptional organization, attention to detail, and proactive problem-solving approach. His leadership and technical precision enable him to manage complex engineering systems and preventive maintenance with confidence and efficiency.
Beyond his engineering expertise, Themis is valued for his calm demeanor, motivation, and strong communication skills—qualities that foster teamwork and a positive working environment onboard. His commitment to excellence ensures seamless operations and reliability throughout every voyage.
Languages: Greek, English
Previous Yachts: M/Y TOY, M/Y ASTRO, M/Y ERA A

Themis Katsis
Chief engineer
Iryna is a highly experienced Stewardess aboard M/Y OASIS, bringing many years of hands-on service experience across private yachts, cruise vessels, and high-end hospitality environments. She is a graduate of a Stewardess College in Ukraine and has built a solid career rooted in professionalism, discretion, and guest-focused service.
Her background includes long-term service on private yachts under the same ownership, where she was responsible for full interior operations, guest service, housekeeping, and daily yacht presentation. Adaptable and dependable, Iryna is equally comfortable working as part of a team or independently, and she consistently maintains high standards in all aspects of interior duties.
Calm, polite, and service-driven, she has a natural ability to make guests feel comfortable and well cared for, contributing positively to the onboard atmosphere and overall charter experience.
Languages: Greek, English, Russian, Ukrainian
Previous Yachts: M/Y MI ALMA, M/Y BLUE BELL, M/Y LINX LONDON, M/Y ELEMENT

Iryna Petrenko
Stewardess
Evangelos is a motivated and enthusiastic crew member who brings strong energy and a positive attitude to the OASIS team. His passion for the sea and commitment to excellence inspired him to pursue a career in yachting, where he continuously works to develop his skills and broaden his maritime knowledge.
Before joining M/Y OASIS, Evangelos served aboard a private 60m yacht, gaining valuable hands-on experience in deck operations, maintenance, and guest assistance. His professionalism, attention to detail, and dedication to safety ensure that all exterior operations run smoothly and efficiently.
Eager to grow within the industry, Evangelos approaches every task with diligence and pride, maintaining the yacht in pristine condition and contributing to an exceptional experience for both guests and crew.
Languages: Greek, English
Previous Yachts: M/Y TACANUYASO

Evangelos Plakides
Deckhand