City of Naples, Florida, Photo Naples Welcome highway sign Welcome to Naples, Florida,. Naples is a city of some 24,000 people living in a tree-lined mix of residential and commercial streets hugging the Gulf of Mexico. City of Miami to Naples (The Tamaimi Trail Scenic Highway) In Florida, “roughing it” isn’t always so rough. There are literally hundreds of great campsites throughout the Sunshine State, from deserted coastal islands ideal for tents to full-service campgrounds that can accommodate recreational vehicles.