Idiomas CAT

Yachtmaster Ocean Theory Online

Yachtmaster Ocean Theory Online



Unravel the mysteries of astro navigation, using a sextant, ocean passage making, worldwide meteorology and electronic navigation aids.

This course is for those aspiring to blue water cruising and is ideal for holders of the Yachtmaster Offshore certificate who are preparing for their first ocean passage.

You will learn how to find your position WITH the moon, stars and planets. The course covers weather, passage planning, watch keeping and much more. The course is fully animated and when you answer a question you will get immediate feedback. One of our experienced online instructors will follow up your progress and answer your questions in 24 h.

If you are working towards your Yachtmaster Ocean Certificate of Competence, completion of this shorebased online course exempts you from the written exam.

PRE-COURSE REQUIREMENTS:  Prior to the course your navigation skills should be at the standard of the Coastal Skipper/Yachtmaster Offshore shorebased course.

Course topics include:    

  • The earth and the celestial sphere
  • Practical guide to use and care of sextant at sea
  • Meridian altitudes
  • Sun, star and other sights
  • Ocean passage planning

DURATION: Around 40 hours should be set aside as study time for this course. Up to six months to complete (with optional extension if required).  Up to two years access to learning materials after completion.


  • RYA online assessment and certificate.
  • RYA practice navigation tables access to the Ocean Yachtmaster Course notes
  • Feedback and help from our fulltime instructors for 18 hours a day seven days a week.



RYA Yachtmaster Ocean Celestial navigation course is delivered by Skippers Online, a RYA Recognised Training Centre specialising in online training.