We went in May 2009. The oldest was 5 and the twins were 2 1/2. We went to a lot of temples, on the river boat, walked around, drove a tuk tuk, Lumpini park and the paddling boats ... nothing specificly or kids and the kids loved all the temples. Honestly, I don't travel to do things that I can do here too ... like Playtown, OP, Disney, etc. unless it's very special and/or we're there for a long time (like Carang for 11 days, you'd probably need other things too). My kids have been to many places and we never do something super child-friendly but include things like boat trips, elephant rides, plenty of time to relax in the pool, etc. Never had any complaints. They love climbing temples, watching large buddhas, driving tuk tuks, etc. We stayed in the Mariott Executive Suites on Sathorn, was about $1500 for 3-bedroom suite including living room, full kitchen, washer / dryer, pool, babysitting, etc. Brand new (early 2009), super friendly, quite good location and plenty of space for a family of 5. Hope that helps!