Mesa Verde National Park will offer a 90-minute sunrise tour of the Balcony House cliff dwelling on May 7.

The tour is limited to 25 people, and tickets are available only at www.recreation.gov, for $15 per person.

The meeting time, location, and additional details are available on recreation.gov.

You must be able to climb a 32-foot ladder; crawl through an 18-inch wide, 12-foot long tunnel; and climb a 60-foot open cliff face with stone steps and two 10-foot ladders to the exit.

Dress warmly and bring a flashlight. Cameras are welcome, but you must be able to carry all of your gear while keeping your hands free to climb the ladders.

Additional tours will be offered June 20, June 21, Sept. 21, Sept. 22, and Oct. 10.