Observed arrival · 2026-08-23

Offshore Theory — navigation practice for the Yachtmaster exam

offshoretheory.com Observed source

Editorial interest 78/100 Selection signal · not a rating of the site

A free interactive course covering buoyage, ships’ lights and shapes, and collision-avoidance rules.

Landing page captured for the 2026-08-23 issue.

Why it surfaced

Offshore Theory replaces passive video lessons with line-by-line practice: three modules break navigation theory into 63 buoyage screens, 48 lights-and-shapes screens, and a collision-avoidance section. It also unlocks 48 buoyage flashcards as the learner progresses, all written by a captain and explicitly independent of the RYA.

A free interactive course covering buoyage, ships’ lights and shapes, and collision-avoidance rules.

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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