There are now two trails opened for this location. The Creek Trail is up and back, then the Bluffs Trail is a separate trailhead and is a loop with a cut-through.

Four Mile Creek wanders across Butler County and joins Seven Mile Creek to empty into the Great Miami River just north of Hamilton. There are 3 sections of this park open:
Antenen Nature Preserve
Mill Race Preserve
Sycamore Bluffs
From Four Mile Creek MetroPark webpage