Riverfront Athletic Club Share: Fitness Center/Health Club Riverfront Athletic Club Visit Website 109 Second Street Hudson, WI 54016 (715) 381-0326 (715) 381-8320 (fax) Facebook About Map About From students to seniors, Riverfront Athletic Club offers people of all ability levels to pursue their fitness goals comfortably. What's Nearby? Distance: 5 10 15 20 25 50 mi.