One of Arizona's most distinctive state parks is celebrating the opening of a new hiking trail, along with an existing trail's renovation, this weekend.

Kartchner Caverns State Park, south of Benson in Southeastern Arizona, will hold a grand opening event for the Ocotillo Trail on Sunday, April 22, at 10 a.m. Following the grand opening, there will be a guided hike for the public at 10:30 a.m. The cost of the event is the park entrace fee of $7 per vehicle.

Kartchner Caverns is best known for its namesake caves, but it also features multiple hiking trails above ground. The park said in a news release that the Ocotillo Trail was constructed in response to visitor requests for additional and more challenging hiking trails. All trail work was completed with hand tools by Arizona Conservation Corps trail crew and park staff. The work was funded by a federal grant, the park said.

The new trail is 1.75 miles long and considered challenging. Those hiking it should wear appropriate shoes and clothing, and take plenty of water. Also being celebrated Sunday is the renovation of the park's existing Foothills Loop Trail, a moderate 2.5-mile route.

Guided tours of the caves will be available for an additional fee during the grand opening, but those seeking tours should make advance reservations by visiting the park's website. And if you stay until evening to do some stargazing, keep in mind that the park has been recognized for its dark skies.