Passing the helm

A fond farewell to Martin Coles CBE – and a warm welcome to our new CEO

Martin Coles at the Sea Cadets National Regatta in 2023


After 15 years of dedicated leadership, Martin Coles CBE is stepping down as CEO of Marine Society and Sea Cadets (MSSC), leaving behind an incredible legacy of opportunity, growth and adventure for cadets and volunteers alike. Martin will remain in post until 16 May, with Guy Holloway joining as CEO-designate on 1 May, allowing for a seamless handover.

Martin’s passion for ensuring that every young person could experience the life-changing benefits of Sea Cadets has shaped the organisation into what it is today. Under his tenure, Sea Cadets has become fully safe and inclusive, with modern safety, safeguarding and inclusion systems in place. He prioritised ‘putting the sea back into Sea Cadets’, overseeing significant investment in a new fleet of boats, ships, facilities and equipment. 

Martin also led to the implementation of the Sea Cadets Experience framework, which now underpins all activities, clearly articulating the organisation’s purpose: launching young people for life. He championed the voice of cadets and has driven digital advancements as well as improved support and systems for volunteers. Martin’s commitment has left a lasting impact, and we wish him fair winds and following seas on his next voyage. 

Martin with the Admiral of the Sea Cadet Corps, HRH The Princess Royal, on board TS Royalist

As we get ready to say goodbye to Martin, we will be welcoming our new CEO, Guy Holloway, who will join us from his role as Interim Chief Executive for the World Association of Girl Guides and Girl Scouts. With nearly 20 years of experience in the charity sector, Guy has dedicated his career to empowering young people, from supporting girls’ education to tackling childhood malnutrition in Africa. 

Growing up in Indonesia, Guy developed a love for adventure, becoming an accomplished scuba diver. One of his most exciting experiences was sailing on a traditional pinisi boat to see Komodo dragons in the wild. While he may not be a sailing expert just yet, he’s eager to learn and ready to embrace the Sea Cadets’ spirit of challenge and teamwork. 

The new CEO of Marine Society and Sea Cadets, Guy Holloway

Guy’s first priority will be to connect with cadets, volunteers and supporters, ensuring that Sea Cadets continues to inspire and equip young people for success. He is excited to build on Martin’s legacy and continue to lead the organisation into a bright future. 

Thank you, Martin, for everything you’ve done. And from 16 May, welcome aboard, Guy – we’re excited for the journey ahead! Look out for the next issue of The Sea Cadet magazine, where we’ll feature a full fact file on our new CEO.


Photos: Sea Cadets/Nathaniel Rosa

More news & Events

A golden group of winners of the top award

Going for gold

Duke of Edinburgh’s Gold Award recipients were celebrated at a prestigious Buckingham Palace event

Learning new skills with SeaVenturers

News round-up: Autumn 2025

A collection of news stories from around the Corps, from Tall Ships to hot shots

Cadets from Eastern Area Sheffield Unit chat with the Lord Mayor, Cllr Safiya Saeed, and Deputy Lieutenant of South Yorkshire, Lt Col Robert McPherson MBE

Area news: Autumn 2025

Find out what cadets have been doing across the country, from winning the most improved unit to commemorating the 80th anniversary of VE Day.
Share news from your area by emailing SCmag@ms-sc.org