Check out this first person view (FPV) drone video from the longest river in Florida, compliments of Giant FPV. It's the St. Johns River, and it runs a course of about 500 km (around 300 mi.), rising in a system of marshes near Vero Beach and flowing northwards to discharge into the Atlantic Ocean at Jacksonville. It's Florida's main commercial and recreational waterway, and is also of vital importance to the state's eco-system. With a drop of only 10 meters (about 30 ft.), it's what's known as a "lazy river".