Aveme SG no need gym lah, if you are really that strong and want to maintain it,go volunteer for 84 gunner,am sure your strength will be well maintained.
Aveme SG i know clementi camp has one. Sungei Gedong camp also has one But most of these gym like bai sui one
Aveme SG It is one of 3 major camp for reservists to take their IPPT and RT so of course need lots of pull up bars