RYA Yachtmaster Ocean - Theory Course

This is a course in astro-navigation and worldwide meteorology which also teaches use of the sextant.

  • 6 Days           Sextant
  • Astro-Navigation
  • Ocean Sailing Techniques
  • Professional Instructors
  • Relaxed Tuition
  • RYA Certification
  • £395 per person



It assumes a knowledge of all subjects covered in previous RYA shorebased courses.

Topics include:     

  • The earth and the celestial sphereStar Chart
  • 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 


Your progress will be monitored through written work during the course, there will be an examination on the final day. This course is strongly recommended before subjecting yourself to the practical examination. 

Call or email today to book your course!


Shiny New Trysail Van 2014
Jay and the crew - August 2014
Bass Point
Louise at anchor in the Helford
Louise berthed in Falmouth Yachthaven
Swan and Cygnets at the Yachthaven Falmouth
RYA Start Yachting Weekend with Ben Instructing
RYA Day Skipper/Comp Crew with Jay Instructing
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2017/18 Course Dates:


Both Theory and Practical Elements combined
 -Live aboard for 1o days-

1st April - 11th April 2018
1st May - 11th May 2018
5th June - 15th June 2018

Other dates available on request..

RYA Start Yachting

All 2018 Weekends from 2nd Feburary

Other dates available on request..

RYA Competent Crew 

4th March - 2 places
8th April - 3 places

2018 Every Sunday from 18th Feb
Other dates available on request..

Online - RYA DS & YM Theory

365 days per year!

£295 per course or £490 combined

(5% DISCOUNT when booked with ANY practical course)

RYA Day Skipper

4th March - 2 places
8th April - 3 places

2018 Every Sunday from 18th Feb
Other dates available on request..

Online RYA YM Shorebased Theory

5% DISCOUNT when booked with any practical course

RYA Coastal Skipper

13th October (7 days) - FULL
30th March 2018 (7days)
25th May 2018 (7 days)


Other dates available on request..

Yacht Master Prep / Exam

Available on Request

More dates and BESPOKE bookings can be added on request!
Just give us a call to discuss options on 01326 212320 or email info@trysail.net