Sorry, should have read your post more carefully as you did mention Central World. I was thinking of the rink at Central Rama 9 where they played hockey. That's where Johnny Oduya played when he was training during the NHL off-season a few years ago (as referenced by the OP). They had a full size hockey rink there; the one at Central World is a bit small for hockey, but a good place for kids to learn to skate, for sure.