Half Distance Triathlon Westfriesland Swim Course: Start with a 1.9 km (1.2 mile) swim in Hoorn’s old harbor, surrounded by stunning views of the city. Water temperatures average 63°F (17°C), making it a refreshing start to your race. Bike Course: The one-loop 90 km (56 mile) bike ride takes you from Hoorn’s city center through the picturesque Dutch countryside. Along the way, you'll pass iconic windmills and charming small towns that showcase the region’s traditional beauty. Run Course: ...