Con your vessel through a buoyed channel using IALA Region B lateral marks — red right returning. Identify lateral, cardinal, isolated danger, safe water, and special marks by colour, shape, topmark, and light rhythm, then keep each mark on the correct side. Covers the IALA System B buoyage standard used in the United States, Canada, Japan, Korea, and the Philippines.
Buoyage identification is tested on every US navigation exam, from the OUPV (6-Pack) licence to the Ocean Master. This game builds rapid visual recognition of all mark types day and night.