Cabo San Lucas is located at the tip of the Baja Peninsula, the longest peninsula in the world and it is about 30 miles south of the Tropic of Cancer. Cabo San Lucas is actually a small city thats becoming the leader in the resort scene in Mexico and is a popular port-of-call for cruise ships. Cabo makes for a great vacation spot with acres of gorgeous white sand beaches and a host of excellent restaurants and activities. In addition, Cabo is known as the marlin fishing capital of the world.