[ large ]

The challenge is to cross without touching bottom (sans electronic depth finder). You can’t see bottom. You can sometimes see a slight change in the hue and color of the sea surface if the light is right. We used a light mushroom anchor and known length of line dropped over the side, old school river boat method, to estimate waters depth. Six feet, four feet, the chart shows shallows that would ground our 1.5 foot draw. The easy way out is to join up on another craft and assume (hope) that their local knowledge was good while watching for tel-tale warning like reduced speed or tilting adjustments to their v-drive. Our draft is fixed so the only escape is a 180. Sometimes it’s clear when the odd sea bird is sighted — standing out there in the suspect area and only ankle deep.
Google Earth Placemark