Conservation, Expeditions, and Research
"Blue Ocean Sailing Expeditions" was founded by Mark Cronje as a result of being inspired by extended ocean passages and global sailing voyages—where prolonged exposure to the open sea revealed both the extraordinary resilience of marine ecosystems and their increasing vulnerability to human pressure. From these lived observations emerged a mission grounded in science, stewardship, and responsibility: to protect marine and terrestrial wildlife, safeguard the health of the world’s oceans, and advance environmental education across international communities.
Operating directly within the marine environment, we document ecological change, monitor emerging threats, and respond to wildlife in distress. Our work places particular emphasis on whale and dolphin conservation—species whose survival is increasingly imperiled by vessel traffic, entanglement, noise pollution, and habitat degradation. Where human activity intersects with fragile ecosystems, we act—collecting data, alerting authorities, supporting rescue efforts, and bearing witness when intervention is required.
As American environmental stewards working on a global stage, we hold that conservation is not a future ideal but a present responsibility. The ocean does not recognize borders, and neither can our commitment to its protection. Through science, seamanship, and service, we strive to ensure that the oceans—and the life they sustain—endure for generations yet to sail them.
OUR TEAM

Mark Cronje
Founder and Expedition Lead
Mark Cronje is the Expedition Leader and Founder of Blue Ocean Sailing Expeditions, bringing more than 35 years of experience in sailing and marine engineering to global research and conservation initiatives. Raised in the wilds of Africa and shaped by a lifetime at sea—circumnavigating the world as a captain, international sailor, navigator, marine engineer, and freediving instructor—he is driven by a deep commitment to protecting marine life and advancing ocean conservation.

Stuart Forrest
Board of Directors and Advisor
Stuart Forrest is an international sailing captain, marine engineer of 35 years, and respected educational lecturer who delivers engaging seminars. Drawing on decades at sea and supporting the rescue of injured dolphins and marine mammals, he combines technical expertise with real-world conservation experience to inspire the next generation of ocean stewards.

Susan Kerby
Board of Directors
Susan Kerby is an accomplished sailor with six years of active offshore experience and a professional background as a marine insurance adjustor. Combining maritime risk expertise with field research, she is currently studying the recent surge in killer whale interactions with vessels, monitoring incidents along the western coasts of Portugal and Spain to better understand and document the causes behind these unusual boat encounters.

Joffre DiSabatino
Board of Directors
Joffre DiSabatino brings over 40 years of experience in aviation electronics and technical consulting, combining precision engineering expertise with a lifelong passion for sailing. Aboard the vessel, he supports the integration and operation of scientific systems, including global communications, environmental sensors, and advanced marine electronics essential to research and conservation missions.
