Best boat ride with local fisherman!!! Better than in Capri to see the grottos!
We went down the steps near the lighthouse. Where we found a man with a clipboard and he takes down your name and you wait for one of the small boats to pick you up. These are the original fisherman that provide the boat rides and it was truly the BEST! It was our 4 family members (only us!) and he was knowledgeable, thoughtful and it was local! So much fun I highly recommend this as opposed to those big impersonal tours. Also, the larger boats can't take you into the caves.
We had "Goody Goody" (his nickname) and he knew all of the cave names and had names for all of the rock formations.
They don't have a website as it is very local, nor a phone number that I know of but if you go to the end of the road and climb down the steps to the left of the lighthouse you will find them!