Can somebody tell be the daily rates for the fitness center at hillside 4 on Huay Kaew

No idea drop in and ask them. While you are in the area I have heard the hotel next to KSG has remodeled their gym you can check them out also.

I checked with someone who started using the H 4 gym two months ago. He took out a 6 month membership at a cost of 3500 thb. There is an annual rate available but he cannot recall the price. Hope this helps.

I used to go there until the little bully of a manager told me he doesn't like foreigners and that Thailand is for Thais. At least he was honest. There are other reports of the same around the internet.

The same guy also works at the fairly new gym at Kad Suan Kaew. I forgot the name of it but it's not the small one inside the mall. This one is on the hotel side. I believe it located on the 4th floor.

There is a good open air gym called Go Gym that is on the Super highway. If you go up the Chang Puak Road, turn left at the Super highway intersection...heading towards Maya mall. About 100 metres on the left is the entrance to this gym. It's a huge gym with lots of weight machines, treadmills, cross trainers and free weights.

From memory it's 3600 baht for 6 months.