HarborFest is sponsored by the Marquette Harbor Rotary Club. This end-of-summer festival is located on the shores of beautiful Lake Superior in downtown Marquette's Ellwood Mattson Lower Harbor Park.
The festival dates are Thursday, August 21, 2025, to Saturday, August 23, 2025. The festival combines music, family fun, food and beverages to raise funds for grants to local non-profit organizations.
Marquette Harbor Rotary Club has been sponsoring HarborFest since 1984. Since that time, the organization has raised over $700,000 that has been used to improve the quality of life in Marquette County.
