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Navathome ICC Course

Theory Course

Navathome ICC Theory Course

Start Today! £90

Revise and retry until you pass

  • Online Almanac & Printable Chart
  • Option to upgrade to physical theory pack
  • Fully Animated & Interactive Lessons
  • Multi Device Support
  • Study At Your Own Pace
  • Proven Pass Rate
  • No Classroom Pressure
  • Extra lessons on practical skills
  • 6 months initial course access
  • Options to Extend
  • Downloadable course completion certificate
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Minimum Requirement For Europe

The ICC Theory course covers general seamanship, navigation, tidal streams and heights, collision regulations, electronic navigation, weather systems, buoyage, and basic safety at sea. It is the standard of theory knowledge required to complement the practical test required to attain an ICC (International Certificate of Competence) license.

Is this course right for you?

The course is ideal for students who do not have any navigation theory knowledge. Once you have completed the theory you can take a small practical course at an RYA practical training centre to obtain your full RYA ICC certificate. The theory course takes approximately 30 hours to complete with a small final assessment of around one hour.
More information about the ICC, and how to apply for the full ICC licence, can be found on the RYA website using the link below. RYA ICC information



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Navathome ICC


  • General seamanship
  • Parts of the boat
  • Tying up alongside
  • Preparation for sea
  • Knots and tacking


  • Understanding charts and depth contours
  • Plotting courses considering tidal set and drift
  • Position fixing by various means
  • Estimated position accounting for tidal set and dr

Tidal streams:

  • Using tidal diamond tables and tidal stream atlas
  • Working out tidal set and drift for different times of day
  • Compensating for spring and neap tides

Tidal heights:

  • Determining height of tide for entering ports, crossing shallows, and avoiding grounding
  • Using tidal height tables
  • Accounting for springs and neap tides
  • Basic secondary port calculations with time differences

Collision regulations:

  • Basic collision avoidance
  • Correct use of lights
  • Identifying vessel types from lights and day shapes
  • Sound signals and their uses

Electronic navigation:

  • Using onboard electronic equipment like chart plotters and instruments.


  • Understanding causes of weather systems
  • Reading and considering present and future weather forecasts
  • Interpreting weather charts and sources of weather information


  • Recognising buoys by shape, colour, and characteristics
  • Understanding actions to take when approaching buoys


  • Basic safety at sea
  • Use of life rafts and life jackets
  • Handling and using flares
  • Types of firefighting equipment and fire prevention
  • Mayday calls and alerting other vessels in a mayday situation


All courses are completed online, study at your own pace, from anywhere in the world.


Our goal is to assist you by addressing common questions and offering valuable information about our courses and services. If you’re unable to find the specific answer you’re seeking, we encourage you to reach out to our dedicated team. We are always ready to provide further assistance and support.