Complex sentence: The finishing point of the "Elfstedentocht" is a canal near Leeuwarden, called the "Bonkevaart", which is close to the famous landmark windmill, "De Bullemolen", Lekkum.
Split into simpler sentences: The finishing point of the "Elfstedentocht" is a canal near Leeuwarden, called the "Bonkevaart". Close to the "Bonkevaart" is the famous landmark windmill, "De Bullemolen", Lekkum.