Andrew Lindley🇬🇧
Director
Founder
ABOUT SEAONE
Shared experience.
Shared knowledge.
A maritime learning community built around the people taking their first steps at sea.
OUR STORY
From deck cadet support
to a wider community.
SEAOne grew from the purpose behind Deck Cadet One: making useful learning resources easier for cadets to find, understand and share.
Cadetship takes you between college, ships and new challenges. DCOne was created from first-hand experience of that journey, bringing revision material and practical guidance together in one accessible place.
SEAOne is the next chapter — a parent brand that connects dedicated support for different maritime departments while keeping each platform focused on its cadets.
THE PEOPLE BEHIND THE COMMUNITY
Meet the team.
James Spencer🇮🇲
Senior Editor
Dave Lalor🇮🇪
Senior Tester
THE SEAONE FAMILY
One home. Dedicated pathways.
DCOne · Deck & Navigation
Our established platform for deck cadets and future navigation officers. Find navigation topics, COLREGS, revision resources, maritime law and practical cadet-life guidance.
Explore DCOneECOne · Marine Engineering
The next addition to SEAOne, with a dedicated focus on engineering cadets. The platform is in development, with resources still to come.
Meet ECOne · Coming soonLET’S KEEP THE COMMUNITY GROWING