Sunsail Sailing School 4+

Essential Rules & Regulations

The Other Hat

Designed for iPad

    • £4.99



Ideal for all yacht and power boaters, this nautical app includes ColRegs, Steering & Sailing Rules, Nav Lights & Shapes as well as Sound & Light Signals.

A fully illustrated learning and revision tool for all sailing and power boaters, with 160 graphics explaining the ColRegs, The International Regulations for the Prevention of Collisions at Sea (IRPCS).

SUNSAIL SAILING SCHOOL app provides at-a-glance information to help all boaters learn how to identify other vessels and the activities they are engaged in, day or night. The app clarifies which vessels have priority, with explanatory graphics and captions, in addition to the complete rules.

The app is divided into the following sections:

COLREG BASICS - the key rules all sail and power boaters should learn.
STEERING AND SAILING RULES - illustrated guide to the correct conduct of vessels in any visibility, in sight of one another and in restricted visibility.
NAV LIGHTS AND SHAPES - illustrated guide to the navigation lights that should be used by the different types of vessel from sunset to sunrise and the day shapes that vessels should display during daylight.
SOUND AND LIGHT SIGNALS - illustrated guide to the manoeuvring and warning signals, the sound signals to be used in restricted visibility and to distress signals.
COMPLETE COLREGS - The International Regulations for Preventing Collisions at Sea (IRPCS) are reproduced in full.
TEST YOURSELF - A series of multiple choice quizzes with graphic representations of the rules to help test your knowledge.

************ APP FEATURES and BENEFITS *******************
- Easy reference learning and revision tool for day skipper and similar courses worldwide.
- 160 graphics and captions for clear, accurate explanations of the rules.
- Researched and produced by nautical and marine experts for accuracy.
- Positively evaluated by professionals for reliability.
- Interactive online "Test Yourself" Section.
- Rules & definitions available at the touch of a finger.
- Expertly drawn illustrations accompanied by clear, concise descriptions of the rules.

Avoiding Collisions
The International Regulations for Preventing Collisions at Sea (Col Regs) are a globally recognised set of rules which help to stop vessels on the high seas from colliding with one another .

Anyone responsible for a vessel, from a small sailing boat to an ocean going supertanker, must be able to quickly identify other vessels around them day or night, whatever the visibility. They need to be able to quickly interpret the light signals, sound signals and shapes that help identify the type and size of a vessel, the direction in which it is travelling, who has right of way, and what action should be taken to prevent a possible collision. This is not always easy, especially in crowded coastal waters and harbours.

Note to U.S. users
The International Regulations for Preventing Collisions at Sea apply to all vessels on the high seas. For vessels navigating the U.S. inland waters, the Inland Navigation Rules apply. The U.S. Inland Rules and the International Rules are broadly similar but there are a number of important differences. Following consultation with U.S. Coastguard officers, Safe Skipper Apps have produced the app Navigation Rules: Inland - for Boating and Sailing which explains the U.S. Inland Rules in detail.

What’s New

Version 1.0.3

This app has been updated by Apple to display the Apple Watch app icon.

Code tweaks for improved user experience

Ratings and Reviews

4.0 out of 5
4 Ratings

4 Ratings

H Dory ,


Packed with useful information about the Colregs. Good clear graphics and explanations. Test yourself is challenging but helping me with my dayskipper course.

Sailor Si ,

Very useful App

A really useful App that helps both learners and experienced sailors learn about navigation, lights, shapes and Collision Regs.

iainwho ,

This is poor value

I must admit did not read the details of this app so partly my fault, I had thought it was a full revision type plan as was £5 and recommended on the Sunsail website, but no it is a very limited guide to only collision stuff. Really poor value for money!!!!

App Privacy

The developer, The Other Hat, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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