What do lateral markers mean boating?

Lateral markers in boating are navigational aids that indicate the edges of a channel or safe passage for vessels. They typically come in two colors: red and green, corresponding to the IALA (International Association of Lighthouse Authorities) buoyage system. The red markers are usually placed on the right side of a channel when approaching from the sea, while green markers are on the left. These markers help boaters navigate safely by defining the boundaries of navigable waters.