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When you think of world-famous amusement parks, Seguin, Texas, probably isn’t the first place that comes to mind. But for nearly two decades, a family-run park in this small town managed to punch far above its weight and even drew thrill-seekers from across the globe. This is the story of how ZDT’s Amusement Park, born out of a simple family dream, became one of the most talked-about attractions in roller coaster culture and small-town entertainment history.
A Family Dream Turned Reality
Back in the early 2000s, Danny Donhauser had a vision: to build something fun and lasting for the people of Seguin. He and his wife, Sarah, turned that vision into ZDT’s Amusement Park, which opened in 2007 with just five indoor attractions. The name ZDT’s wasn’t random it stood for Zac, Danielle, and Tiffany, their three children. The whole project was rooted in family values, built from the ground up with love, creativity, and a long-term goal of giving back to the community.
Growing from the Ground Up
ZDT’s didn’t start big. Instead, it grew with patience and purpose. After opening, the park added a go-kart track in its second year and expanded further with more attractions like the Mad Raft Water Coaster, climbing walls, a bungee trampoline, and an arcade. By 2014, it offered twelve attractions, indoors and out. Without corporate funding or flashy advertising, ZDT’s gradually grew into a full-scale amusement destination that locals cherished and regional visitors relied on.
The Game Changer, The Switchback
Everything changed in 2015 with one ride: the Switchback. It was the world’s only wooden shuttle roller coaster, featuring a steep 87-degree incline and a reverse-run track that doubled the thrill. Built for $3.5 million over 10 months, it blended nostalgia with modern engineering, using a metal track on a wooden frame to mimic America’s first roller coaster the Switchback Railway. It was an engineering first that made ZDT’s impossible to ignore in the coaster world.
A Global Following
What happened next surprised even the Donhausers. Word of the Switchback spread beyond Texas. Hardcore roller coaster fans from the UK, Argentina, and other countries traveled specifically to ride this unusual, backward-running wooden coaster. The Roller Coaster Club of Great Britain brought 70 members to Seguin just to experience it. Just like that, a small-town park was on the global radar thanks to one ride that dared to be different and delivered.
More Than Just a Ride
While the Switchback got the headlines, ZDT’s offered something more meaningful heart. This wasn’t a corporate-owned park chasing profits. It was a family-run operation focused on making people smile. With attractions for all ages and a commitment to safety and kindness, ZDT’s fostered loyalty among locals who returned year after year. It was the place where kids grew up, and teens landed their first jobs, all within a fun and welcoming environment.
Hollywood Came Calling
ZDT’s got an unexpected dose of fame in 2021 when HBO’s Love and Death filmed a scene at the park. Actress Elizabeth Olsen, who’s terrified of roller coasters, rode the Switchback during filming and later talked about the experience on The Late Show with Stephen Colbert. That single appearance turned heads nationwide and gave ZDT’s a brief but bright moment in the pop culture spotlight—suddenly, Seguin’s little park was on everyone’s radar.
The Final Lap
In July 2025, ZDT’s announced that it would permanently close on August 17. Though no exact reason was given, the Donhausers explained the decision came after much reflection. Some suspect the park may go up for sale. The announcement triggered a flood of emotional responses from locals and coaster fans who had made memories there. In its 18-year run, ZDT’s went from a simple dream to a beloved destination ending its run on a proud and heartfelt note.
A Legacy Bigger Than Its Zip Code
ZDT’s may be closing, but its legacy will stick around. It proved that world-class attractions don’t require massive budgets or prime locations. All it takes is vision, persistence, and heart. This family-built park put Seguin on the map, drew international attention, supported the local economy, and left a permanent impression on everyone who walked through its gates. For a tiny Texas town, ZDT’s made a global mark and that’s something worth remembering.