Unofficial study aid

Day Skipper Theory Prep

Shorebased Navigation · Independent exam prep for chartwork, tides, IRPCS, buoyage, pilotage, weather, safety and passage planning.

Practice 2,000+ original questions, timed theory mocks, buoyage & light trainer, tide drills, flashcards and readiness tracking — offline-first on iPhone and iPad.

Not affiliated with the RYA. Content is original study material based on public collision regulations and standard navigation practice.