The Nagivation System

Photographer: Tiger Yuri
From: Cruising Bay of Islands, a composition in digital photography - Day Five

The Nagivation System

It's hard to see, but the little black sorta-boat-shaped thing represents where we are. The numbers are the depth of the water - the darker the shallower (weird to me). The yellow is land, the dark yellow is land that is only just underwater and you need to watch out for!!