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McDowell Sonoran Conservancy: Boojada Adventure Walk at Gateway Trailhead

McDowell Sonoran Preserve - Gateway Trailhead 18333 N. Thompson Peak Pkwy., Scottsdale

When you think about Halloween, it’s normal to think of spooky and scary symbols like spiders, spider webs, and bats. But if you learn a little more about these creatures...

Free

Maricopa County Parks and Recreation: Cave Creek – Seed Toss Event

Cave Creek Regional Park 37900 E. Cave Creek Pkwy., Cave Creek

Join this Desert Defenders event to help spread native seeds and improve the health of our desert ecosystem. Cave Creek Regional Park October 30, 2025 8 am – 11:00 am Meet at the Nature Center. It is time to toss our seed pellets!  Join us! We will fling native seed pellets created early this year...

Free with Park Fee

The University of Arizona: Richard F. Caris Mirror Lab Tour

The University of Arizona Steward Observatory 933 N. Cherry Ave., Tucson

This 90-minute tour provides a unique opportunity to learn how innovative engineering and optical technology melds with manufacturing techniques to produce the largest and most advanced giant (8.4 meters / 27 ft)  telescope mirrors in the world on the University of Arizona campus. Visitors will see the unparalleled technology and revolutionary processes in making the...

$20 – $25

Maricopa County Parks and Recreation: Kayak to Castle Creek

Lake Pleasant Regional Park 41835 N. Castle Hot Springs Rd., Morristown

Join Ranger Kevin for a leisurely morning paddle up Castle Creek.   Looking to get out on the water, but don’t want to do it alone? Just want to spend some quality paddle time on the lake? We’ve got just the thing! Sign up for this morning kayak excursion on Lake Pleasant. We’ll begin at Castle...

Free with Park Fee

Phoenix Herpetological Sanctuary: Mammal Tour

Phoenix Herpetological Sanctuary Actual location given after reservations, Phoenix

Are you mammal obsessed? This is the tour for you!  Our Private Mammal Tour is a great option to meet some of our furry friends, watch feeding demonstrations, and learn more about the mammal residents at PHS! Your VIP-Inspired Experience Includes: Capybara interaction for the group. Meet, pet, and feed our adorable capybara "Spud"! Opossum interaction...

$350

Pima County Public Library: El Rio Outreach Walk-In Clinic

Pima County Public Library - Joel D Valdez Main Library 101 N. Stone Ave., Tucson

Nurses from the El Rio Community Health Center will be at the Joel D. Valdez Main Library every Thursday from 12:30pm to 3:00pm. This is a walk-in clinic so no appointment is necessary! The nurses are able to provide these services: Primary care Blood pressure check Screening labs/STD check Medication prescription Acute and chronic disease management...

Free

Flandrau Science Center & Planetarium: Mysteries of the Unseen World

Flandrau Science Center & Planetarium 1601 E. University Blvd., Tucson

Mysteries of the Unseen World reveals the hidden wonders all around us—too fast, too slow, or too small for the naked eye. Stunning visuals and cutting-edge science uncover a mind-blowing world you’ve never seen before. Audience: General, all ages Style: IMAX film adapted for planetarium + live star talk     All-Inclusive Planetarium Show Tickets...

Free – $27

Pima County Public Library: 3D Printing

Pima County Public Library - Wheeler Taft Abbett Sr. Library 7800 N. Schisler Dr., Tucson

Do you have an interest in CAD? Have you ever wanted to make your own fidget-toy? Come join us for 3D Printing on Thursdays and use our Adventure3 printer, run with Flashprint software, to design the 3D creation of your dreams. Prints limited to 30 minutes builds unless by appointment with teen librarian. 13+ only.

Free

Pima County Public Library: GED Prep by Literacy Connects

Pima County Public Library - Flowing Wells Library 1730 W. Wetmore Rd., Tucson

This class will help participants improve their reading, writing, math, and critical thinking skills, all of which are necessary to increase their chances of success on their GED exams. The class will be taught in English. Instruction can include assignments, traditional lectures, and interactive practice. Participants should be 16+ Minimum requirements: Notebook and something to...

Free

Pima County Public Library: GED One-on-One Help | Ayuda personalizada de GED

Pima County Public Library - Valencia Library 202 W. Valencia Rd., Tucson

When you have a specific question, or just need a little extra boost, our GED instructor is here to help you. GED Prep is available in the subjects of Social Studies, Math, Science, Languages Arts, and Civics Classes. Instruction can include assignments, traditional lectures, and interactive practice. Participants should be 16+ Minimum requirements: Notebook and something...

Free

Flandrau Science Center & Planetarium: SPOOKY Touring the Solar System

Flandrau Science Center & Planetarium 1601 E. University Blvd., Tucson

Take a guided journey through the Solar System's darkest corners, where beauty masks cosmic horrors. Through Jupiter's eternal storms and Saturn's deadly rings... Discover a universe full of wonders and unique frights! Audience: General, all ages Style: Live star talk     All-Inclusive Planetarium Show Tickets Show tickets include access to all science center exhibits...

Free – $27

Science Vortex Verde Valley: Makerspace Family Night

Science Vortex 301 N. Willard St., Cottonwood

Families are welcome every Thursday to design, create, and collaborate! Try out sewing, animating, programming, inventing, and more! Join us to CrEaTE! Every Thursday. Every Thursday, 4:30-6:00  

Free

Glendale Public Library: Heroes of Halloween

Glendale Public Library - Heroes Regional Park Library 6075 N. 83rd Ave., Glendale

Unmask the spooky fun at Heroes of Halloween, a family event where creativity and mystery collide! Craft oozing slime, fold frightfully fun origami, set off on a thrilling scavenger hunt, and discover even more hands-on Halloween surprises. Costumes encouraged! Superheroes, monsters, and magical beings welcome!

Free

Pima County Public Library: GED Prep en español

Pima County Public Library - Quincie Douglas Library 1585 E. 36th St., Tucson

Curso de GED Prep en español -- Esta clase ayudará a los participantes a mejorar sus habilidades de lectura, escritura, matemáticas y pensamiento crítico, todas ellas necesarias para incrementar sus posibilidades de éxito en sus examenes GED. La clase se impartirá completamente en español. La instrucción puede incluir tareas, conferencias tradicionales y práctica interactiva. Los...

Free

Patterson Observatory: Free Observation Night

Patterson Observatory at the University of Arizona Sierra Vista Campus 1140 Colombo Ave., Sierra Vista

Public Night is held once a month on the Thursday nearest first quarter moon. Observing starts a half hour after sunset.  The event is weather dependent and is canceled in the event of clouds or inclement weather.  Admission is free, but space is limited.  Guests wishing to attend this in-person event must register. The University...

Free

Desert Foothills Land Trust: Wild Wonders – An Evening of Arizona Wildlife Photography

Sanderson Lincoln Pavilion 101 Easy St, Carefree

Join Desert Foothills Land Trust and photographer Bruce Taubert for "Wild Wonders: An Evening of Arizona Wildlife Photography" on Thursday, October 30th at 6:00 PM at the Carefree Desert Gardens Pavilion. Taubert has spent years documenting everything from tiny bees to soaring bats to majestic bears – and everything in between – creating images that...

$20

Yuma County Library District: Spooky Stargazing

Yuma County Library District - Main Library 2951 S. 21st Dr., Yuma

Spooky Stargazing strikes again! Bring your binoculars, telescopes, and lawn chairs for prime planet and stargazing. Costumes encouraged. Thematic candies - supply limited.

Free