Essential Navigations and Seamanship Theory Course

Online course

RYA Essential Navigation and Seamanship


Sunsail offers the RYA Essential Navigation and Seamanship (ENAS) as an online course, making it easy for you to fit your learning around other commitments.

This ENAS online course will give you the essential knowledge needed when you’re afloat, from navigation to safety and seamanship to passage planning.

The course should take around six to eight hours to complete and is ideal for new or inexperienced skippers and crew—whether you're a sailor, a motor boater, a diver or a fisherman.

We recommend all ENAS student purchase additional reading, such as the RYA ICC Handbook.

Course syllabus

1. Charts, publications and terms – Basic terms, chart overview, introduction to chart datum and depths
2. Buoyage – Lateral buoys, cardinal buoys, where to find information
3. Navigation – Plotting a position, measuring distance and bearing, position fix, heading
4. Safety – personal and boat safety equipment, safety procedure and briefing, communications, engine checks, rescue procedures
5. Anchoring – Where to anchor, how to anchor
6. Tides – tidal streams, tidal heights
7. Electronic navigation – GOS terms, GPS use, using waypoints
8. Rules of the road – Risk of collision, who gives way
9. Weather forecasts – sources of forecast, terms used in forecast
10. Pilotage – Harbour information, transits, pilotage plan
11. Passage planning – SOLAS V requirements, pre planning, chart choice

What's Included

  • Personal login and access to the RYA Interactive Essential Navigation Course
  • Quality plotter and dividers so you can do your chartwork
  • RYA training charts and online almanac
  • RYA Essential Navigation Northern Hemisphere Exercise book
  • RYA Essential Navigation handbook
  • Access to RYA Chart Plotter Software

Why take this course with Sunsail?

This online course will take around six hours to complete, but the beauty of it is that you can work through it at your own speed, whenever and wherever you like.