Troop 21 has a long and proud history within the Park Hills Service Unit, serving Girl Scouts for many years. Traditionally an older-girl troop, Troop 21 has evolved into a Special Interest Travel Troop dedicated to providing unforgettable travel experiences and leadership opportunities for Cadette, Senior, and Ambassador Girl Scouts.
The idea for the travel troop began at the 2021 Volunteer Conference when Trista approached Sheila about creating a troop focused on travel after Trista's girls were set to graduate in June 2022. Having served together on the Park Hills Service Unit team for many years—and after successfully traveling with their troops to Utah—they shared a vision of giving older Girl Scouts the opportunity to explore new places, build confidence, and create lifelong friendships through travel.
That vision became a reality with the launch of Travel Troop 21. Today, we welcome Cadette, Senior, and Ambassador Girl Scouts (grades 6–12) who are excited to discover new destinations, embrace new adventures, develop leadership skills, and create memories that will last a lifetime.
Sheila and Trista are the leaders for Travel Troop 21.
Sheila is a Girl Scout Lifetime Member and has been a dedicated Girl Scouts San Diego volunteer for more than 18 years, serving as a troop leader for over 13 years. She began her volunteer journey as the Cookie Manager for her oldest daughter's troop before becoming a co-leader after helping plan the troop's Bronze Award project and San Francisco bridging trip. She led that troop until the girls graduated in 2020 and also proudly led Troop 4035 from Daisy through Ambassador, celebrating their graduation in 2026.
Throughout her years of service, Sheila has held numerous leadership roles within the Park Hills Service Unit, including Activities Consultant, Treasurer, Service Unit Manager, Encampment Director, and advisor to the Camper Council. She also served as a Girl Scouts San Diego National Delegate from 2020–2022 and shared her knowledge as a Girl Scout Trainer, teaching both council classes and Volunteer Conference workshops.
Sheila's dedication has been recognized with several Girl Scouts San Diego volunteer awards, including the Volunteer Appreciation Pin and the Honor Pin. During her tenure as Service Unit Manager, she also helped lead the Park Hills Service Unit in earning the prestigious Service Unit President's Award.
Travel has always been one of Sheila's greatest passions, and she loves helping Girl Scouts discover the world through adventure. Over the years, she has planned and led troop trips throughout California, including Catalina Island, Santa Monica, and four adventures to San Francisco. She has also organized trips to Portland, Seattle, Orlando for the Girl Scout National Convention, Puerto Rico, Utah, Japan, Our Cabaña World Centre in Cuernavaca, Mexico, and most recently Iceland and France in 2026.
Whether hiking Bryce Canyon and Zion National Parks, whitewater rafting in Utah, horseback riding in Iceland, exploring international cultures, or experiencing the magic of World Centres, Sheila believes that travel builds confidence, independence, leadership, and lifelong friendships. She also enjoys traveling personally and has explored Japan, Mexico City, London and Scotland with Troop 21 co-leader and travel partner Trista, including a special visit to Pax Lodge, the WAGGGS World Centre in London, for a pinning ceremony.
Sheila is passionate about creating meaningful opportunities for older Girl Scouts to challenge themselves, experience new cultures, and make memories that will last a lifetime. She is excited to continue leading Travel Troop 21 on adventures around the world and inspiring the next generation of Girl Scout travelers.
Trista was a Girl Scout and remembers the fun she had with her mom leading that troop. She followed that tradition when her daughter started as a Girl Scout Daisy 15 years ago. She became the leader of that troop when they bridged to Brownies and continued leading her troop for the next 11 years. Her roles included leader, treasurer, and product sales manager. Her troop of Ambassadors took their final bridging trip to Paris, Freiburg and London in July 2022. She has been an active team member of the Park Hills Service Unit for several years including positions such at Service Unit Manager, Registrar, and Recognitions Chair. She received the Appreciation Pin Girl Scout Volunteer Award.
Trista has a passion for traveling with Girl Scouts and her family. She is an experienced travel planner and has traveled with her troop to San Francisco, and on a high adventure trip to Utah. During summer of 2022, she traveled to Paris, Freiburg and London with her Ambassador troop. She has traveled with family and friends to China, Indonesia, Mexico, Canada, Hong Kong, France, Germany, Italy, Austria, Spain, Portugal, England, Scotland, Wales, Switzerland and Vatican City. She also lived in Granada, Spain her junior year of college.
As a leader with Travel Troop 21 she has traveled to Orlando, FL, Santa Monica, San Francisco, Japan, and Our Cabana WAGGGS center in Cuernevaca, Mexico. Trips in the works for the troop in the summer of 2025 are France & Iceland.
Her daughter was able to take advantage of travel opportunities with Girls Scouts and traveled to go horseback riding in the Rockies for a week and also spent over two weeks in India including time at the World Association of Girl Guides and Girl Scouts Center in Pune, India. She used these experiences to successfully describe her passions and leadership skills on college applications.
Trista is looking forward to helping lead girls to fulfill their travel dreams, discover their passions, gain confidence and grow their leadership skills.
Contact by email at: gstraveltroop21@gmail.com
GSSD Troop Support Specialist for Troop 21:
Mary Talle
Pronouns: she/her
Girl Scouts San Diego
619-610-0778
mtalle@sdgirlscouts.org