Officials said two juvenile boys discovered in the area admitted to having a part in the fire, which was discovered just before 7 p.m. by a man walking his dog.
About six acres of swamp burned at Connor Bayou County Park as firefighters from two departments worked around swirling wind and ponds of water to protect park structures from the blaze.
Robinson Township Fire Chief Paul VanVelzen said the fire was contained to the marsh area east of the parking lot, in between the trails.
“We used water cans and the Polaris,” the chief said about getting to the fire. “We stretched water lines off the other trucks.”
A fire truck also responded to a home to the east of the park. VanVelzen said fire was encroaching on the house.
Ottawa County Parks and Recreation Director John Scholtz confirmed there wasn’t any damage to any structures in the park.
“Did it harm anything at the park? No,” he said.
“Obviously we don’t like the idea of people setting fires in the parks,” he added. “It’s worrisome.”
Firefighters were on the scene for more than two hours.
Grand Haven Township Fire and Rescue assisted.