Sunday Geology Walk at Catalina
Catalina State Park
Sundays - check dates in description Times vary
Ever wondered how the majestic Santa Catalina Mountains came to be? Join experienced geologist Karen to learn about the fascinating geologic history of the Catalinas. This program begins with an informative geology presentation. After learning some geology, you’ll go for a guided hike to see interesting rock formations. Overall, the program runs for 3-4 hours, so bring water and snacks! Follow signs for “Picnic Areas” and meet at the Picnic Area Ramada.
Sunday Geology Walk
Sunday – Dates and Times Vary
October 25, 2026 – 8:30 AM
November 8, 2026 – 8:30 AM
November 22, 2026 – 9 AM
December 6, 2026 – 9 AM
December 20, 2026 – 9 AM
January 3, 2027 – 9 AM
January 17, 2027 – 9 AM
January 31, 2027 – 9 AM
February 14, 2027 – 9 AM
February 28, 2027 – 9 AM
March 14, 2027 – 9 AM
March 28, 2027 – 8:30 AM
April 11, 2027 – 8:30 AM
April 25, 2027 – 8:30 AM
MORE EVENTS
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Saturdays, July 4 - September 26
Monsoon Magic
Did you know Arizona actually has five seasons? Monsoon Magic is an interactive nature exhibit where you’ll learn about the wildlife and meteorology of the southwest’s rainy season.
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Saturdays (September-October)
Introduction to Birding by Ear
Listen for birds, learn their common sounds, and grow familiar with your local birdlife. All skill levels are welcome!
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First, Third and Fifth Fridays of the Month
Catalina Nights
Experience Catalina State Park’s desert wildlife and dark skies with a one-mile, guided hike on the Nature Trail. Registration required.
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Saturdays, October - April
Saturday Nature Program at Catalina State Park
Learn about the fascinating Sonoran Desert at this family-friendly program featuring live reptiles!
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First Saturdays of the Month (October-May)
Buffel Slayers
Help eradicate buffelgrass from the park and Save Our Saguaros! Be prepared to work hard!
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Oct. 3 | Oct. 17 | Nov. 7
Music in the Mountains Concert Series
Celebrate Arizona’s vibrant music scene with a breathtaking view of the mountains! Please bring a chair, and feel free to bring food, drinks, and your best dance moves.
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Sunday, October 4, 2026
Everyone Runs Trail Race
Challenge yourself to a trail race at your own pace! Multiple race options and packages are available.
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First and third Mondays, October - April
Catalina State Park - Past, Present, Future
Join one of our park volunteers to explore the history of Catalina State Park and its surroundings from the 1850s to today, and get a sneak peek of exciting upgrades planned.
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2nd & 4th Fridays, October 9 - April 23
Nature Journaling at Catalina State park
Learn the practices of Nature Journaling through focused observations of the flora, fauna and geology while connecting to the beauty of Catalina State Park.
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Oct 10 | Dec 11 | Feb 13 | Apr 24
Star Party at Catalina State Park
Imagine what you can see with telescopes provided by the Tucson Amateur Astronomy Association at Catalina State Park! Join us for an exciting, educational Star Party!
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Sun, Weds and Select Mon, Oct 18 - May 17
Guided Bird Walks at Catalina
Located in the Tucson Sky Islands Important Bird Area, Catalina State Park is home to 150+ species of birds. Experienced birding guides will help you spot and identify beautiful birds as you walk through the park for 3-4 hours. This is an Outdoors250 event.
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Second and fourth Mondays, through May
Romero Site Interpretive Hike
Join local guides for a tour of the Romero site and walk through 1000-years of indigenous Hohokam history in 90-minutes! Learn about the area’s ranching history and how the Hohokam made a living in the desert. The Romero Ruins Trail has stairs and crosses a seasonal stream; be prepared to walk in ankle-deep water. There are no restrooms on-site. There is no shade on the trail so please bring plenty of water and sun protection like a hat and an umbrella. Limited to 20 people: first come, first served. Meet at the Romero Ruins Ramada. This is an Outdors250 event.
