Just to add on, you might wanna check out the Marina South abandoned steamboat hawker centre, they are in the midst of fencing it up for demolishing works. You might wanna try your luck there this few days. OCH is another place where many photographers and thrill seekers visit everyday, you dun need to go there at night though. But again, doesn't matter if you're male/female, won't be wise to go alone. Since the buildings are abandoned, they won't be absolutely safe either. So best to get some company.