I also wanted to say that we like Wet N Wild very much. As TotoToo mentioned, the Disney water parks may have better theming but WNW, hands down, has the better slides. Go. You'll have a good time.
It's easy to get to Universal or WNW from Cypress Pointe by going the back way on to Palm Parkway. If you staying at Cypress Pointe (Phase I), make a left out of the parking lot. Go to the stop sign and make a right. Then go to the stop sign (4 way) and make a left on to Palm Parkway. Proceed all the way on Palm Parkway. At the traffic light (Central FL Parkway) it will become Turkey Lake Road. Just continue to go straight. You'll be running parrallel to Route 4 on your right. After crossing over Sand Lake Road, get into the right lane and you'll see Universal coming up on your right. Just make a right turn on to Hollywood Blvd. at the light and you'll ultimately drive straight into Universal's parking lot!
For WNW, do exactly the same thing except at the Universal Parking Lot, make a right on to Universal Blvd. This will take you directly to International Drive and you'll see Wet N Wild on your right hand side.
Have fun!!