To take leave or not to take

This coming Monday is the Penang Governor's Birthday....
By default, it is a public holiday...for all the folks staying on the Penang island.
I am staying on the island and by right, my company should be giving me the day off as well; but since we have 2 sites in Penang and also Kulim and my headcount happens to unfortunately falls in the Kulim pool, we do not get that privilege to enjoy the public holiday to celebrate the Governor's birthday.
Now, I am thinking of taking leave to go back to KL and visit my uncle and also of course, my beloved and dearest Mummy, Daddy and bro.
I am not sure what I should do now; should I tell my boss?
Should I take leave or not? Hmmmm.....