Sea mark

Okay kiddo, have you ever seen a big red and white striped lighthouse? That's a sea mark! It's like a giant sign on the ocean to help boats and ships know where they are and where they need to go.

There are different kinds of sea marks, like buoys and beacons, that come in different shapes, colors, and sizes. Some are tall towers with lights on top that blink in a pattern, some are floating devices that move with the waves, and others are mounted on rocks or on the shore.

These sea marks are very important because the ocean can be very big, and it's easy for boats and ships to get lost or crash into things. By looking at these sea marks, sailors can figure out where they are, what direction they need to go, and if there are any hazards like rocks or shallow water.

So, sea marks are like giant signs in the ocean that help boats and ships navigate and stay safe. Pretty cool, huh?