Meet at Douglas Springs trail head at the east end of Speedway Boulevard at 8:30 a.m., Friday, Dec. 7, for a medium-difficulty hike of four to five hours over 6 miles with an elevation gain of about 1,000 feet. An extra mile can be added to visit Ernie's Falls. Children younger than 18 must be accompanied by an adult. Call 429-4492 for reservations and information about what to bring. Visit sabinonaturalists.org
for information about other, regularly scheduled Sabino Canyon hikes.