There is a dive/ fishing shop call hobi sport. I do not have the address but u can goggle it. They were having a sale when I was there last year. Bought a mares gloves 3mm for s$15 only! The fins there are less than s$50 ! But did not manage to buy any coz dun have my size. Bought a mares bootie for s$25 . It's actually a fishing shop but the 2nd level sell all dives stuff. Their mares 3mm wet suit is s$90. But not sure what's their stock like now coz I was there late last year.