Re: Boaters saftey "quiz" for fun.
Green bouys are taken on the port side when returning from sea, not starboard.
Good eye DR! I didn't notice that error.
But here's a bit of trivia. If one was boating in Europe, Africa, and most of Asia, including Australia and New Zealand. Where the "International Association of Marine Aids to Navigation and Lighthouse Authority" (IALA) System "A" is used; Red buoys are kept to port when entering from seaward and green buoys are kept to starboard. But mostly "Cardinal" bouys are used.
We use IALA system "B" in North, Central, and South America, Japan, South Korea, and the Philippines. Red buoys are kept to starboard (red right returning) when entering from seaward, green buoys are kept to port. We also have Cardinal bouys but they are not so common.
In general, here on the west coast of Canada (and possibly in the USA), when one is traveling northward this is considered to be traveling inbound. But there are places along the Inside Passage and here in the Queen Charlotte Islands (Haida Gwaii) where one is traveliing westward, which is travelling seaward, but the buoys are set up for traveling inbound.
Also keep in mind that bouys are moored and can be off their charted position and should only be used as a aid to navigation. Always consult an up to date marine chart and used fixed landmarks to establish your position and which course to use.