Gym classes

Hi all,

We are presently in India but might soon come to Muscat for work. I and my husband are particular about daily gymming. I found through this forum that there are quite a few gyms in Muscat but can somebody tell me how much would the membership fee be? I had browsed through the net and found a news piece where it was mentioned as 120 Rials per month. Surely it cant be that expensive? Also can somebody tell me if we could find extra curricular classes like dance, keyboard etc for the children? Are they too expensive too? Please, I would be very grateful to anybody who could give me a clear picture. Thanks in advance.