From the intro the rules:

"The America's Cup Game is an entertaining Australian-made family board game suitable for 2 to 6 players aged 7 years and upwards and with an average playing time of 15 minutes. It is easy to set up, the rules are easy to follow and the game can be conveniently stored when not in use.

The board is modeled on the America's Cup course, by now familiar to most Australians. Basically, each yacht progresses around the course according to the number thrown on the dice. If a yacht sails onto a Red mark a Wind Shift Card must be turned up to see whether wind conditions are favourable or unfavourable."