The salak is native to Indonesia but is grown all over Asia. I bought some at Tops supermarket the other day. The fruit , which has skin with a snake skin pattern, had already been peeled and packed in a plastic tray.
Inside the salak fruit contains segments, each containing an inedible seed. The delicious flavour is very distinctive and hard to describe. The sour/sweet taste is somewhat like pineapple.
Salak fruit is said to be good for health.
It is grown in Australia at the Cape Tribulation Exotic Fruts Farm in Northern Queensland, but I have never seen it on sale.