Sailing TheoryLearn today. Sail tomorrow.

Real knowledge.
For real sailing.

Clear lessons, realistic scenarios and practice questions for Day Skipper-level theory.

Six lessons free. One purchase. Yours to keep.

Structured learning

Eight stages of sailing theory, explained clearly, one lesson at a time.

Realistic practice

Real situations and practice questions to build confidence.

Designed for sailors

Practical, focused and relevant to life on the water.

Learn anywhere

A thoughtfully designed iPhone app. Works offline.

The complete course

Eight stages.
A clearer path.

From boat handling to weather, charts to collision regulations. Build your knowledge, one stage at a time.

Explore the eight stages

Build your knowledge. Sail with confidence.

Learn the rules of the road the way you'll meet them: from the cockpit, by day and at night. Short lessons, real situations, and reviews that bring back what you forget.

Ready to start?

Build your knowledge. Sail with confidence.

Six lessons free. One purchase. Yours to keep.

No subscription, no advertising, no account.

A clearer course is on the horizon.

Sailing Theory is coming to the App Store. Explore the course now, or contact us for more information.

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Stage 01

Boat and seamanship

Know your boat, her gear and her ropes, and keep her crew safe.

Boat and seamanship: the parts of the boat, ropes and knots, safety equipment, anchoring and mooring

Stage 02

Buoyage and pilotage

Understand navigational marks, lights and safe passage.

Buoyage and pilotage: lateral, cardinal and other marks, IALA A and B, transits and clearing bearings

Stage 03

Charts and position

Read the chart, take bearings and fix your position.

Charts and position: chart symbols, latitude and longitude, fixes, dangers

Stage 04

Course and tide

Work out tides and streams, and the course to steer.

Course and tide: tidal heights and streams, course to steer, estimated position

Stage 05

Weather

Read the forecast and the sky, and decide whether to go.

Weather: pressure, fronts, clouds, forecasts, fog and whether to go

Stage 06

Collision regulations

Know who gives way, and how, when vessels meet.

Collision regulations: who gives way and why, from crossing and overtaking to narrow channels, traffic separation schemes and restricted visibility

Stage 07

The night watch

Recognise vessels, lights and signals after dark.

The night watch: navigation lights, day shapes and sound signals on vessels you can turn and look at, by day and by night

Stage 08

Passage and command

Plan the passage, brief the crew and handle an emergency.

Passage and command: passage planning, crew briefing, man overboard, fire and distress

Buoyage and pilotageCollision regulationsCharts and position