If it’s a matter of a landmark, I trust GPS. If it’s a matter of where the rocks and shoals are, I trust a human. From the cockpit you can only see what’s above

If it’s a matter of a landmark, I trust GPS. If it’s a matter of where the rocks and shoals are, I trust a human. From the cockpit you can only see what’s above the waterline. Currents and seas can shift sand bars and reefs. For that you need a person on the bow.