One way is to use the Okeechobee Waterway, which is a 154-mile-long canal that connects the Kissimmee River to the St. Lucie River. The Okeechobee Waterway is part of the GIWW, and it can be used to travel from the Gulf of Mexico to the Atlantic Ocean.
Another way to travel between the GIWW and the AICW is to use the Caloosahatchee River, which is a river that flows from Lake Okeechobee to the Gulf of Mexico. The Caloosahatchee River can be used to travel from the GIWW to the Atlantic Ocean by way of the Charlotte Harbor Estuary.
Finally, it is also possible to travel between the GIWW and the AICW by using the Alligator Alley toll road. The Alligator Alley toll road is a 75-mile-long highway that connects Naples, Florida to Fort Lauderdale, Florida. The Alligator Alley toll road can be used to travel from the GIWW to the Atlantic Ocean by way of the Everglades.