This is an amazing water park near Khao Yai National Park. It a huge theme park with three different zones : Life Park, Splash World and Midwest.
For little kids there is a fun shallow play area with slides, steps, fountains etc.
Address : 777 Moo 5 Thanarat Road, Moo See, Pakchong, Nakhon Ratchasima 30130
Tel +66 92 337 6996
Also have a look at www.scenicalworld.com