About Great Adventures

A service agency such as Great Adventures is only as good as the people who work here. Ellen, Monica, Priscilla, Brigitte and Linda have worked as a team for the last 20 years, sharing their experiences and knowledge, enriching each itinerary prepared personally for their clients.

Our Staff


Ellen Sims

Founder, Owner

Owner and President, started the agency in March 1989. For over 28 years Great Adventures has made arrangements for a great part of growing San Antonio.

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Monica Trevino

Travel Advisor, Manager, Owner

Growing up in Acapulco gave me an early exposure to one of the most beautiful tourist resorts in the world thus igniting my curiosity and passion for travel.

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Travel Specialist

Pris Trawick

Travel Consultant

Even as a toddler Pris Trawick's middle name was "Go" because she always was ready to depart for an adventure.

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Brigitte Castrejon

Travel Consultant

Born and raised in the tourism industry, Brigitte learned about travel as she worked alongside her mother.

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Linda Blend

Travel Consultant

Because travel always has been my passion, working in the industry seemed the perfect means to satisfy my wanderlust.

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Supporting Staff

Bob Sims

VP Marketing

Traveling has been a big part of Bob’s life for the past 50 years.

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To help you discover ways to explore the world, we're pleased to share our digital magazine, The Travel Experience.

View Magazine

Save money and escape the crowds. Hot Deals and multi-port packages. Savings of up to 50%!

View Excursions

Our free app that allows you to carry all of the destination information you need while traveling, right in your pocket!

Download the Phone App!

We recommend optional travel insurance that protects you in the event of having to cancel your trip avoiding travel vendor cancellation policies and more!

Buy Travel Insurance