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RYA Yachtmaster Ocean Theory

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.

This course is classroom based and taught over 5 days (approximately 40hrs)

Free Resit Guarantee*

Our guarantee is that we won't give up on you. In the unlikely event that you fail or can't complete one of our RYA courses, you can resit or rejoin another at NO EXTRA COST (*see Terms & Conditions).

Course Information

We include everything you will need with your course fee:
  •     RYA Yachtmaster Astronavigation Book
  •     RYA Navigation Table
  •     RYA Training Charts
  •     Use of Sextant for duration of the course
  •     RYA Exercises and Answers
  •     Nomad Sailing Course Notes
Topics for this course include:  (review the full syllabus)
  • The earth and the celestial sphere
  • Practical guide to use and care of sextant at sea
  • Meridian altitudes
  • Sun, star and other sights
  • Use of sight reduction tables
  • Sun, star and other sights
  • Ocean meteorology
  • Ocean passage planning
We run our theory courses at the following locations:


Prior to the course your navigation skills should be at the standard of the Coastal Skipper and Yachtmaster Offshore shorebased course.

How do I Book?

Check out the available course dates and then contact us or book online. If you have any questions please don't hesitate to contact Lou or Jim for more information.

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