Story highlights The unique San Antonio park opened recently

Admission is free for those with disabilities, and they provide complimentary waterproof wheelchairs

(CNN) At Morgan's Inspiration Island water park in San Antonio, visitors don't have to face any wheelchair ramps at one of the park's main attractions: The riverboat adventure.

Instead, the boats rise to meet them, so guests with disabilities can avoid the trouble that often accompanies those with special needs at amusement parks.

That's the idea behind the world's first ultra-accessible water park, creator Gordon Hartman said. The main goal: Inclusion for those with and without disabilities.

"Children and adults who have special needs are sometimes left out, not because they want to be but because sometimes things are not always adequate for them to use," Hartman said.

That's not the case at this $17 million tropical-themed park, which held its grand opening on Saturday.

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