Ten interactive quizzes and branching-scenario games - the quickest way to cement knowledge from the guides into long-term memory.
20 questions on hull, rig, sails and foils.
37 questions on cardinal, lateral and isolated-danger marks.
60+ questions on code flags, racing flags and storm signals.
38 questions on vessel identification at night.
57 questions on the NATO alphabet and Mayday procedure.
60 questions with compass diagrams.
Interactive: springs and neaps, chart datum, rule of twelfths and drying heights.
45 questions on Beaufort, clouds and forecasting.
32 scenarios on port/starboard, mark rounding and right of way.
Branching decision trees for capsize, MOB and distress.