Heritage Harbor parkrun, held on April 25, 2026, in scenic Ottawa, IL, offers a fantastic opportunity to enjoy a free, weekly 5K run, jog, or walk. This community-focused event takes place along a picturesque two-lap, paved harbor wall walkway that stretches from the east to west peninsula of the Marina, providing breathtaking views of Heritage Harbor and the Illinois River. The course is generally a mix of concrete, gravel, and trail paths, offering a varied and engaging experience. Typical race day conditions for late April in Ottawa feature pleasant temperatures, with highs around 64°F and lows around 40°F, and only a 19% chance of precipitation, making for ideal running weather.

As a parkrun event, Heritage Harbor is entirely organized by dedicated volunteers and welcomes participants of all abilities, from seasoned runners to those taking their first steps in a 5K. It’s also a family-friendly event where leashed dogs are encouraged to join the fun. While there are no traditional aid stations, the strong sense of community is a highlight, with participants often gathering for a post-parkrun coffee at the Red Dog Grill, fostering camaraderie and making it a social highlight of the weekend. This inclusive atmosphere and beautiful waterfront course make Heritage Harbor parkrun a unique and welcoming experience. The event starts and finishes near the parking lot by the Bluegill Boathouse and Marina Bar at Heritage Harbor.