[huisen]

You can try Pulau Payar. There are companies who organize trips which leave from Penang itself. I don't really know what it's like having not been there before. It's kinda touristy from what I hear but you might just want to get wet while you're there. Look it up I suppose. I've seen lots of into by just googling it. But you need to see whether it's feasible for such a short stay. Diving off Penang itself? I don't think you wanna do that. Really. But Filan's right. Enjoy the food!