Im not really familiar with the area... but from zayed road, i take the road going to hatta...
just keep on going...

then you will see it on the right side.
Its huge! just like a dragon.
i suggest you park somewhere near area D or E.. because theres not much to see from area A-C
operation hours: 9:30am-1:30pm 4:30-10:30pm
not sure if they are open on friday morning tho.
HTH