An Introduction to Orienteering class and practice course will be offered from 8 a.m. to 1 p.m. on Saturday, Oct. 3, at Holbrook’s Hidden Cove Park by the Greater Phoenix Orienteering Club and the City of Holbrook. Registration is slated at 7:30 a.m. on Oct. 3, followed by the beginner’s clinic at 8 a.m. The sprint and beginner’s practice courses will open at 10 a.m. and 12 noon is the last start time for them. Participants will learn to navigate with only a map and compass. Please bring water, a whistle and a compass, though a limited number of compasses will be available, and wear sturdy shoes. Participants under 18 must have a completed parental consent form, available online at gphxo.org. To reach Hidden Cove Park, take the Perkins Valley Road exit (exit 283) of Interstate 40, turn north, then east on Golf Course Road and travel two miles. Just before reaching the golf course entrance, turn east and follow the gravel road for about a mile to the park. For more information, call the city offices at (928) 524-6225 or go online to gphxo.org. More orienting fun will be offered on Saturday and Sunday, Oct. 17 and 18, at Petrified Forest National Park.