The Calusa are a bit of an anomaly. This native tribe that lived in South West Florida at the time of European contact, and for several hundred years before did not practice extensive agriculture like most other Florida tribes. Also unlike most tribes, they built houses on raised mounds and pilings near water. They were a true maritime people; the first in Florida. Fish was the main staple of their diets, caught in nets and large earthwork fish traps, called weirs. There is also strong evidence of a commercial trade network that extended into the Caribbean, and possibly as far as Central America.
How did a people who didn’t even have metal tools manage all this? They were master canoe builders. On average the Calusa’s canoes were around 15 feet for use in lakes, rivers and protected bays. The most common building material was Southern Yellow Pine. The large amounts of pitch in these trees probably aided in burning out the inside of the log to create the shape. The straight close grain would have helped ensure an even shape to the inside of the hull. If it is presumed an average canoe was 15 feet long and 2 feet wide it wouldn’t be unreasonable for it to accommodate three or four hundred pounds of goods and travel at a walking pace moved by one man with a long paddle or pole.
To take full advantage of their canoe building they widened existing creeks and dug navigation canals across islands and inland to make trade within their territory even easier. The largest of these canals was thirty feet wide and six to eight feet deep. In a time without horses or wagons, this was a revolutionary approach, and is likely a large part of why the Calusa were able to be such a powerful tribe. Power can only extend as far as goods and troops can readily be moved. Not only did this approach allow for moving goods quickly but allowed one man to move what would’ve taken several men to carry.
In addition to the smaller personal sized canoes, they also built large ocean-going canoes twenty to thirty feet long and as much as five or six feet wide. These larger canoes were the ones carrying goods to Cuba and the Bahamas as well as used for trading and raiding up and down the coast.
When Pedro Menendez de Aviles visited the Calusa in 1566, Chief Calos (called Carlos by the Spanish) was brought out to meet Menendez’s ship aboard a catamaran made from two canoes with a platform on top. The chief sat inside a thatched shelter on the platform. This is the only reference to native built multihulls in this part of the world.