Along with the Foam Parties, there are lots of pool-related games and sports for adults and kids (water basketball, volleyball, banana boat races, pool aerobics). There's also a supervised rock-climbing wall next to the pool. I haven't stayed there in a while, but last time I did, they also had a "Movie Night" - a movie would be displayed on a wide screen that you could watch while in the pool. There's a spa and fitness room. Also on certain nights, the kitchen would prepare special dinner buffets (seafood, etc), which would be served "semi-poolside". Inside the hotel there's internet access.
Some of these activities are at additional cost.
Also - the Hard Rock Cafe is right beside the hotel on its Beach Road side!
www.hardrockhotelpattaya.com