this is what i just found:
"KaZa park is a massive tourism attraction initiative and it will be the largest trans-frontier conservation area in the world, covering some 280 000 sq. km's.The size of Italy"
http://www.kazapark.com/
aquatica
Gates of the Arctic National Park and Preserve
Finniss Conservation Park was created in 1976.
Billiatt Conservation Park was created in 1940.
Marino Conservation Park was created in 1989.
Fairview Conservation Park was created in 1960.
Cleland Conservation Park was created in 1945.
Mamungari Conservation Park was created in 1970.
the worlds largest water park is in Brazil south America
The biggest resort complex is Disney World but single park is Disney's Animal Kingdom Park at 500+ acres.
The area of Wildspace Conservation Park is 6,400,000.0 square meters.
The area of Finniss Conservation Park is 1,030,000.0 square meters.