This is a lookout point that will leave you in awe. Just getting there is an adventure in itself, climbing up the steep, narrow, winding cobblestone streets that go up the hillside clustered with small white buildings. When you get up there, not only can you see the whole of Granada, but the mountains encircling it and the valley, and on the other side, the Alhambra. It's breathtaking.
Tip: for the Alhambra, you need to book in advance - at least a day. So buy a ticket for the following day so you can get in!