Firecracker 5K - Marengo
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Event
The Firecracker 5K is a Run/Walk held on Saturday, July 4, 2026, in Marengo, Indiana (zip 47140). The event entry fee is $20. The listed price increases after January 15, 2026. The venue address is 177 S Second St. The organizer describes a year-round underground temperature of 54 degrees at the course feature.
Course
The course starts at the Marengo Boys and Girls Club and proceeds along SR 64, passing Marengo Cave. It heads to an underground tour area near the 1-mile mark, doubles back, and finishes outside near the festival. The route includes rolling hills on the outdoor sections. The indoor/warehouse segment features several back-and-forth hairpin turns and a corridor with offroad-like but smooth terrain. The indoor portion begins shortly after the 1-mile mark and brings the course to about the 2-mile point, with described good lighting, cool temperature, and flat terrain. Visit the organization's website for the most recent information.
