Article: Utrecht is home to the premier league (professional) football club FC Utrecht, which plays in Stadium Nieuw Galgenwaard. It is also the home of Kampong, the largest (amateur) sportsclub in the Netherlands (4,500 members), SV Kampong. Kampong features fieldhockey, soccer, cricket, tennis, squash and jeu de boules. Kampong's men and women top hockey squads play in the highest Dutch hockey league, the Rabohoofdklasse.Utrecht is also home to the baseball and Sofball club: UVV which plays in the highest Dutch baseball league: de Hoofdklasse. Utrecht's waterways are used by several rowing clubs. Viking is a large club open to the general public, and the student clubs Orca and Triton compete in the Varsity each year.

Question: What Utrecht waterways host to
Utrecht's waterways are used by several rowing clubs