Bumping this up in case anyone is interested. Note, it does not go to Pompeii. Thanks, Carol.
We have been to Naples several times so we were looking for an excursion that went to new places. We found one on http://italytours.eu/ for May 6th for Naples, Sorrento and Positano for 69 euro per person. We can fit six more people in the van. They pickup and drop off at the port. Description from the website is below. If interested, just sign up directly on their site or you can email them with questions.
Enjoy one of Europe’s most beautiful coastal rides along the base of Mount Vesuvius and arrive to the enchanting resort town of Sorrento. Here you may take your time to explore the historical district with it’s alleyways, souvenir shops and cafes. Enjoy the beauty of this place and don’t forget to try the local Pizza, Gellato or Espresso. take your time to soak it all in. Next is a panorama tour of Positano and the Amalfi coast. The town of Positano looks like a waterfall cascading down the rocks to the sea. Enjoy fantastic panoramic views from here, and get the chance to take some amazing photos. After the visit to Positano and the coast, we will head back to the port in order to return you safely to your ship with plenty of time for departure. On the way back we may stop at the Posillipo view point and the famous Naples Square of Piazza Plebiscito with a panorama visit to the Royal Palace & the church of San Francesco di Paola. This is an enchanting easy shore excursion at your own pace at unbeatable rate.