Turquoise Trail Guided Walking Tour — Presidio San Agustín del Tucson Museum, 196 N. Court Ave. A 2.5-mile walking tour of downtown Tucson past many architectural and artistic gems important to Tucson’s history. Suitable footwear. Not recommended for young children. 10 a.m.-12:30 p.m. Nov. 18. $15. 837-8119.

Presidio Museum

OUTDOORS  

All events are free or included in admission or vehicle entrance fee unless otherwise noted. Parking may be additional. Bad weather may change or cancel activity. Children must be accompanied by an adult. No pets unless otherwise specified.

Birding  — Pima County Agua Caliente Park, 12325 E. Roger Road. A guided walk through the park and along the ponds to see raptors, sparrows, and many other birds. Ducks should be arriving for the winter. Loaner binoculars available. Online registration required. 8:30-10 a.m. Nov. 16. 724-5375.

Is it A Cactus or A...sparagus — Saguaro National Park East, 3693 S. Old Spanish Trail. Come learn the difference between the two most famous families of desert plants on this short stroll in the cactus garden. 10-10:30 a.m. Nov. 17 and 24. 733-5153.

Nuts about Nature Preschool Hour — Roy P Drachman-Agua Caliente Park, 12325 E. Roger Road. Learn about nature through stories, crafts and games. Ages 3-5 with an adult. Register online. 10:30-11:30 a.m. Nov. 17. 724-5375.

Stargazing — Historic Hacienda de la Canoa, 5375 S. I-19 Frontage Road, Green Valley. Presentation by Whipple Observatory. Telescopes for viewing. Bring flashlight and lawn chair. Weather permitting. All ages welcome. 5-8 p.m. Nov. 17. $5. 724-5220.

A Night Under the Stars — Pima County Agua Caliente Park, 12325 E. Roger Road. Tucson Amateur Astronomy Association volunteers provide an introduction to the night sky. Telescopes for viewing. Bring a chair. 6-8 p.m. Nov. 18. 724-5375.

Family Nature Walk — Sabino Canyon, 5700 N. Sabino Canyon Road. Easy trail nature walk for the entire family. Lead by Sabino Canyon Volunteer Naturalist. 8:30-10:30 a.m. Nov. 18. 603-2912.

Historic Craft Demonstrations — Tumacácori National Historical Park, 1891 E. Frontage Road. May include, tortilla making, paper flower making, pottery, or O’odham basket weaving, or other art forms. 10 a.m.-4 p.m. Nov. 18 and 19. 377-5060.

Historical Tour — Pima County Agua Caliente Park, 12325 E. Roger Road. A guided walk around the grounds and historic buildings to gain insights into the rich farming and ranching history of the site. 11 a.m.-noon. Nov. 18. 724-5375.

History Walk — Millville Ruins, Charleston Road, Sierra Vista. A walk with The Friends of the San Pedro River that is known for its many petroglyphs etched into the rocky hillsides. Suitable footwear. 1-3 p.m. Nov. 18. Donations accepted. 459-2555.

Ironwood Nature Walk — Tucson Mountain Park, Ironwood Picnic Area, 1500 S. Kinney Road. A naturalist-guided walk on mostly-level trails to learn about the plants and wildlife. Ages 12 and up. Online registration required. 8-10 a.m. Nov. 18. $5. 724-5375.

River Walk — San Pedro House, 9800 E. Highway 90, Sierra Vista. Find 82 species of mammals, dozens of reptiles and amphibians and nearly 350 species of birds. 9-11 a.m. Nov. 18. 459-2555.

Sonoran Desert Weedwackers — Tucson Mountain Park. Help to eradicate buffelgrass and fountain grass. Work requires hiking and pulling buffelgrass on steep slopes. Email eeducation@pima.gov for meeting location. Ages 18 and up. 8-11 a.m. Nov. 18. 724-5375.

Historic Tour — Historic Hacienda de la Canoa, 5375 S. I-19 Frontage Road, Green Valley. A walking tour of the headquarters, historic buildings, corrals and exhibits. Online registration required. 10-11:30 a.m. and noon-1:30 p.m. Nov. 18. 724-5220.

Turquoise Trail Guided Walking Tour — Presidio San Agustín del Tucson Museum, 196 N. Court Ave. A 2.5-mile walking tour of downtown Tucson past many architectural and artistic gems important to Tucson’s history. Suitable footwear. Not recommended for young children. 10 a.m.-12:30 p.m. Nov. 18. $15. 837-8119.

Bird Walk — Environmental Operations Park, Hwy. 90 east of Sierra Vista. A two hour walk led by docents from Southeastern Arizona Bird Observatory and the Friends of the San Pedro River. Suitable footwear. 8-10 a.m. Nov. 19. Donations accepted. 459-2555.

Desert Botany 101 — Saguaro National Park East. An easy walk through the cactus garden. 10-10:30 a.m.  Nov. 19. 733-5153.

Hidden Wildlife — Saguaro National Park East. Learn to look for the signs that animals leave behind. 10-10:30 a.m. Nov. 19. 733-5153.

Petanque in the Park — Reid Park, 830 S. Country Club Road. Learn and play the French game. 2-4 p.m. Nov. 19. 664-4133.

Sparrow ID Class — Pima County Agua Caliente Park, 12325 E. Roger Road. Join Jeff Babson to learn the intricacies of identification. Ages 12 and up. Online registration required. 10 a.m.-noon. Nov. 19. $15. 724-5375.

The Turquoise Trail: Part 1 — Presidio San Agustin at the corner of Washington St. and Church Ave. Stops include the Presidio re-creation, Pima County Courthouse, Pancho Villa statue, former Carnegie Library, Odd Fellows Hall, Hotel Congress, Pioneer Hotel Building, and the Railroad Depot. Refreshments. 10 a.m.-noon. Nov. 19. $20. 625-8365.

Birding Cienega Creek — Gabe Zimmerman Davidson Canyon Trailhead, 16000 E. Marsh Station Road, Vail. Join Jeff Babson on this guided walk to observe hawks, tanagers, warblers, sparrows, and many others. Online registration required. 8-10 a.m. Nov. 20. 724-5375.

Sonoran Lifestyles — Saguaro National Park East. A 2 hour, 1 mile walk to discover how plants and animals adapt to life in the desert. Ages 10 and up. 10 a.m.-noon. Nov. 20 and 21. 733-5153.

Night Walk — Saguaro National Park East. Join a park naturalist to experience the desert at night. Reservations required call 733-5153. 7-9 p.m. Nov. 24. 733-5153.

Walking Tour — Presidio San Agustín del Tucson Museum, 196 N. Court Ave. Includes a tour of the Presidio Museum, lunch at La Cocina Restaurant, and a tour of the historic buildings at the Tucson Museum of Art. Cost includes lunch. Attendees must register and pay in advance at TucsonPresidio.com. 10:30 a.m.-1:30 p.m. Nov. 24. $45. 837-8119.