More in this category: RYA/MCA Yachtmaster Offshore – Sail RYA Yachtmaster Ocean Theory The Ocean Theory course covers the art of celestial navigation, required for candidates wishing to work towards the RYA/MCA Yachtmaster Ocean Certificate of Competency. Elements covered include, setting up sextant, taking and reducing sights. Following the course candidates are required to complete … Continue reading Yachtmaster Ocean Theory