Tony DeNicola
Director of Product Development
THE TEAM
Tony DeNicola brings a steady, experience-driven perspective to The Grand Adventure Tour Company, shaped by years of leadership in the travel industry as both a travel advisor and host agency owner. Known for his calm, solutions-focused approach, Tony combines big-picture vision with close attention to operational detail.
He holds the CTC (Certified Travel Counselor) and CTIE (Certified Travel Industry Executive) designations from The Travel Institute, along with the VTA (Verified Travel Advisor) credential from ASTA. His professional background spans luxury and small-ship cruising, curated land tours, and escorted group travel, with a consistent emphasis on pacing, quality, and authenticity.
Tony is deeply involved in itinerary development, partner selection, and experience design, helping ensure that every Grand Adventure feels seamless, thoughtful, and well-supported. His approach reflects the company’s core philosophy: travel should feel effortless for the guest, while delivering depth, meaning, and lasting memories.
Denise Heise brings more than three decades of experience turning ideas into meaningful, well-executed experiences. A multi-company business owner and licensed travel advisor, she combines deep industry knowledge with a strong background in business development, client service, and strategic support.
Denise is known for her ability to truly listen—understanding not only what travelers want, but what advisors need to succeed. Her approach is practical, collaborative, and grounded in real-world experience, allowing her to provide guidance that is both insightful and actionable.
At The Grand Adventure Tour Company, Denise plays a key role in supporting advisors as they grow their businesses and elevate their client experience. Her focus is simple and consistent: when advisors are confident, supported, and successful, the entire company thrives. Through thoughtful mentorship and hands-on involvement, she helps ensure every journey reflects the care, creativity, and professionalism behind the brand.
Denise Heise
Director of Business Development
Tracy Marvin
Director of Operations
Tracy Marvin oversees operations with precision, consistency, and a deep respect for process. With more than 20 years of experience in operational leadership, she ensures that every detail—pricing, planning, and execution—is aligned with the high standards The Grand Adventure Tour Company promises its travelers and advisors.
Tracy’s strength lies in structure and accountability. She is deeply involved in maintaining transparency, accuracy, and efficiency across the organization, helping ensure that every journey is thoughtfully planned and flawlessly delivered.
A passionate traveler herself, Tracy believes exceptional experiences begin long before departure. Her hands-on approach and attention to detail provide travelers with confidence and peace of mind, allowing them to focus fully on discovery, connection, and enjoyment throughout their adventure.
Michael Marvin brings a disciplined operational mindset and a strong eye for execution to The Grand Adventure Tour Company. With more than a decade of experience in operations and logistics, he focuses on the planning, coordination, and behind-the-scenes details that ensure every journey runs smoothly from start to finish.
Michael believes that great travel experiences are built on reliability and clarity—when logistics are handled well, travelers are free to fully engage in the adventure. His approach prioritizes thoughtful routing, realistic timing, and seamless transitions, ensuring that each itinerary delivers exactly what it promises.
Working closely with the product development and operations teams, Mike helps shape trips that balance structure with discovery. His goal is to create experiences that feel effortless for travelers, while quietly maintaining the precision and consistency required to make complex group travel work exceptionally well.
Michael Marvin
Director of Logistics
Douglas Heise
Director of Support
Douglas Heise serves as a steady, responsive point of support for both travelers and advisors throughout the entire journey. With decades of customer service experience and extensive firsthand travel knowledge, he ensures that guests feel informed, prepared, and cared for before departure, during travel, and after they return home.
Having traveled extensively throughout the United States, Europe, the Caribbean, and Mexico, Douglas brings practical insight and honest guidance to every interaction. His recommendations are grounded in real experience, allowing him to anticipate questions, address concerns, and provide reassurance when it matters most.
Douglas believes exceptional travel support is built on trust, availability, and attention to detail. By listening closely and responding thoughtfully, he helps create seamless, stress-free experiences—so travelers can focus on enjoying the adventure, knowing they have reliable support every step of the way.
Diane DeNicola oversees financial operations with a strong commitment to trust, accuracy, and reliability. Her work ensures that systems run smoothly, compensation is handled correctly and on time, and the financial foundation of the company remains solid and transparent.
Diane approaches finance as a support function first and foremost—one that enables advisors and partners to focus on what they do best. Her attention to detail and process-driven mindset help create stability behind the scenes, reinforcing the company’s reputation for professionalism and dependability.
Based in Central Florida, Diane enjoys traveling alongside her family and experiencing many of the destinations the company designs. Her long-term vision is to help grow The Grand Adventure Tour Company into a respected global brand while preserving the integrity, care, and standards that define it.
Diane DeNicola
Director of Finance