http://www.wildwadi.com/
Hello. I was at Wild Wadi for a day in April, 2008 and I found it to be delightful.
It is right on Jumeirah Beach and situated right between the Jumeirah Beach Resort, the Madinat Arab Resort and the Burj Al Arab. Upon entry you will be given a wristband watch that allows you a towel and to charge any food or sundry purchases while inside the park.
I liked the "river" slide that went uphill in some areas.
The website has all the info you will need for times, prices, etc.
Let me know if you have any specific questions.