Ironman Portugal - Cascais. This race takes place in Cascais, Portugal, a picturesque coastal town located just 30 minutes away from Lisbon. The race begins with a 3.8-kilometer swim in the Atlantic Ocean, starting and finishing on the golden sands of Praia do Pescadores. The crystal-clear waters are perfect for swimming, and you'll be able to see fish and other marine life as you make your way through the course. The swim is a single loop course, and you'll be able to enjoy stunning views of ...