We used Tours of Capri (www.toursofcapri.com) for a wonderful private tour of Capri (they have a 5-star rating on TripAdvisor (out of 446 reviews). Our guide met us at the dock in Sorrento and escorted us to Capri on the ferry. When we arrived in Capri, there was an open air car with a canopy overhead that drove us around the island. Our guide tailored the tour to our tastes and even suggested a great place for lunch (where I had the best ravioli of my life!!). Our tour guide was really good (spoke perfect English) and we had a truly wonderful day. We went into the Blue Grotto, took a chair lift to the top of Monte Solaro, and also took a boat ride around the island and to the Faraglioni rocks. It was well worth the money because we saw and did so much more than we would have on our own. It was very relaxing because we didn't have to worry about the logistics of getting around the island on our own and they timed everything so as to minimize waiting in lines. We went to the Blue Grotto first thing in the morning while the lines were short & our guide took us to the front of the chair lift line. (I suggest taking the chair lift to the top of the island, if it's a clear day, as the views are wonderful). Have a wonderful time.