If you are already in Ravello or Amalfi, this is a lovely walk right on your doorstep. It is perfectly feasible coming from Sorrento, although you will need to consider the time it will take to get to and from Ravello.  An alternative on the return stretch would be to walk directly to Amalfi from Minori, avoiding much of the steep climb up the steps back to Ravello, or you could even catch the bus from Minori to Amalfi.

With your back to the cathedral, leave the main square in Ravello along Via della Marra (opposite you on the right). When you come to a slight  fork, keep to the right along Viale Parco della Rimembranza. Go past Hotel Bonadies and  into Via Lacco, taking the first turning to the right which will bring you down to the main road. Here turn left and keep on walking. After roughly 800m, take  the slight fork to the right towards the hamlet of Sambuco. There is now a long stretch along the road, made more pleasant by the great views across the valley where you can distinguish the Convento di San Nicola perched on top of the hill.

Shortly before the village go down the  steps to the right. When you come to the rivulet, cross it and follow the path going gently uphill along the other side of the valley passing through shady woodland.  When you come to the saddle you can see the ruins of some ancient building up to your left. Approximately 300m further on you will come to a fork. The one to the right goes down to Minori,  the left one goes up  to the Convento.

There are great views from here, especially from the top of the hillock by the side of the church. An excellent place for a picnic. Return the way you came, but turn left at the fork. Eventually you will come to another fork and this time keep right (the one to the left goes to Maiori). Many steps further down, you will join the path linking Maiori and Minori. Go right.