About us

The following information can be found on the National Website at 


Who we are

Royal Marines Cadets (RMC) are part of the Sea Cadet Corps, Operating in Detachments based within Sea Cadet units, 117 RMC detachments exist across the UK, Channel Islands,  Malta and the Falkland Islands.

To join a Detachment you need to be 13 and can stay on till you reach 18, at which point you can think about whether you might want to be a volunteer. You can then teach what you have learnt to the youngsters coming up through the ranks.

“The training we offer is transferable to your place of work or education. It’s about discipline, about taking with you our ethos and Corps values and applying them to everyday life with courage, determination and humility. And doing it with a sense of humour and a smile or two along the way!”

The operational head of the RMC is the Staff Royal Marines Officer (SRMO), who is a serving Colour Sergeant on
secondment to the MSSC from the Royal Marines. He is responsible for overseeing the running of the RMC and reporting to the CSC. He is also responsible for conducting the annual SRMO field assessment which all detachments must participate in.

The SRMO is assisted by the Royal Marines Cadets Staff Officer (RMCSO) and Corps Regimental Sergeant Major (Corps
RSM), who is the senior WO1 in the corps.

Where we are

Eastern Area (X-Ray Coy) click any of the red links to the left or, National Units www.sea-cadets.org/find-your-nearest-unit


In 1955 Commandant General Royal Marines (CGRM) expressed a wish to form a Marine Cadet Section which could be incorporated into the Sea Cadet Corps. The Admiral Commanding Reserves agreed to sponsor the Marine Cadet Section. A Captain Royal Marines (Capt Toaze) was appointed to ACR as Staff Officer Royal Marines (Now Staff Royal Marines Officer - SRMO).

Director Royal Marine Forces Volunteer Reserve, now Royal Marines Reserves, was responsible to CGRM for the running,training and administration of the MCS which started with five detachments. As an integral part of the SCC the MCS are short titled Marine Cadets. The title ‘Royal’ did not apply at that time.

By 1964 the MCS had grown to 40 detachments and by 1984 there were 61. Today there are 117 detachments in Sea Cadet units across the UK.

In 2010 the MCS was honoured to be renamed Royal Marines Cadets, following agreement by HM the Queen to the use of “Royal” in the title. An official rebadging ceremony took place at CTCRM Lympstone on 25 September 2011.

Alpha and Zulu companies provided a 48 man guard and two colours for the National Trafalgar Day Parade on Trafalgar
Square on October 24 2011, the first time in the Royal Marines Cadets History.

Find out about more here

What we do

Royal Marines Cadets take part in all of the usual Sea Cadet courses and activities as well as learning specific training like fieldcraft, map reading and weapon handling. It’s arduous but exciting and these exhilarating activities take place across the UK including at the Royal Marines Commando Training Centre at Lympstone in Devon.

Every year there is a national competition, The Gibraltar Cup at Lympstone where RMC detachments across the UK pit their wits and skill against one another to compete to be the best.