![Royal Navy Diver emerges from water in diving equipment.](https://cd.royalnavy.mod.uk/-/media/rnweb/organisation/international-defence-training/onsite-training/diving/diving-1-cdo.jpg?h=2482&iar=0&w=5401&rev=2dec986dc0b04c2e8304f681a33b7c5e&hash=2AF55BB4EA6DE48D66627B97007B6895)
Clearance Diving Officer (CDO)
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This section shows details of the Clearance Diving Officer course run out of the Defence Diving School, Horsea Island, Portsmouth – the centre for all military diving training for UK Armed Forces and international navies and maritime organisations.