If you rely wholly and solely on GPS to cross an ocean, you won’t know if you are right until you get there!

The RYA Ocean Yachtmaster shorebased is a course in celestial navigation by sextant, worldwide meteorology and the worlds ocean currents. This course is designed for those who aspire to blue water cruising and ocean crossings and covers passage planning, both gnomonic (high latitudes) and mercator charts, yacht management, remote sailing, communications and electronic navigation just to name a few. The Ocean shorebase course is a must for those seriously planning offshore adventures.

“After I did the Ocean Shorebased course with you several months ago, I’ve retired, taken possession of our yacht ‘Sunburnt’ and are ready to go on our circumnavigation……” Tony, Brisbane

What experience do I need?

You should have experience of coastal and offshore sailing and possess knowledge of all the subjects covered in the RYA Coastal Skipper/Yachtmaster Offshore shore based course.

Having successfully mastered the RYA Coastal/Yachtmaster navigation you are now well equipped to join the RYA Yachtmaster Ocean course and be privilege to the ingenuity of the great navigators.

What will I learn?

  • The earth and the Celestial Sphere
  • The PZX triangle
  • The sextant
  • Measurement of time
  • Meridian altitudes
  • Sun, star and other sights
  • Compass checking
  • Satellite navigation systems
  • Great circle sailing
  • Meteorology
  • Passage planning
  • Passage making
  • Communications

What do I bring?

Course starts 0930. Pencil and note paper, pencil sharpener, pencil compass, dividers, plotter, parallel rule, rubber and calculator. Recommended reading is reference book “Celestial Navigation” by Tom Cunliffe, RYA Navigation and Weather handbook. This complete package can be purchased from us at a cost of $295.

Ocean Theory

Classroom Course


(Self-Paced) Course



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