This is the old road over the mountain (not the new Ma-11 that goes through a tunnel) from Soller in the North towards Palma in the South (or vice versa if you ride it the other way).
A superb mountain pass in every way, with a cafe at the top that serves excellent meat pies. Hairpins all the way, and very little traffic as it all uses the tunnel.
Starting from the roundabout as you leave the main road, the route does not look too promising, but youre soon climbing up a series of hairpins to the top of a hill. You go down the other side with superb coastal views until you reach a section of uninspiring straight road that thankfully does not last long before you climb once again up the cliffs of the cape heading towards the cafe underneath the lighthouse at the end where you have views across the mediterranean to Menorca on a clear day.
At the beginning of the route (actually the top of the 682m mountain), there is a spectacular corner that takes you around 270 degrees and back under the road that you have just ridden down.
Halfway down there is a junction - stay on the main road to the right for the ride down to sa Calobra where there are resting facilities, or take the turning to the left to climb over another hill and down to a small, deserted cove.