It’s all hills — up and down — from here.

Olympic National Park hosts its annual “Ride the Hurricane” on Sunday, Aug. 4, challenging cyclists to either 24- or 36-mile options to the top of Hurricane Ridge Road and back. Participants have the option to start their ride at one of two locations: the Heart O’ the Hills entrance gate for a 24-mile round trip or from Peninsula College, five miles north of the entrance gate, for a 36-mile round trip.

Registration for either ride option opens at 6 a.m. at the Peninsula College parking lot, 1502 E. Lauridsen Blvd., Port Angeles. Registration cost is $35. Participants opting to ride the longer route from Peninsula College may start as early as 6 a.m.

From the Heart O’ the Hills entrance gate, riders climb 12 miles and more than 4,000 feet to Hurricane Ridge, which stands 5,242 feet above sea level. After completing their summit, riders will be allowed to descend at their own pace.

The Port Angeles Regional Chamber of Commerce is organizing the ride, with sponsorship from several local businesses.

For safety purposes, Hurricane Ridge Road will be closed to all vehicle traffic between the Heart O’ the Hills entrance station and Hurricane Ridge, starting at 5 a.m. and ending at noon. This applies to both uphill and downhill travel. The road opens to traffic at noon, when the event is finished.

Olympic National Park will waive entrance fees at the Heart O’ the Hills entrance station for the rest of the day on Aug. 4.

To register to ride, visit the Port Angeles Regional Chamber of Commerce website at www.portangeles.org/ride-the-hurricane.html.