We hired a private boat for our family to cruise along the coast for two hours and our boat launched here to let us off to take the tour. We had two kids with us so they enjoyed the experience of getting into another boat, being in a cave and the underwater scene. To be honest there was another smaller grotto that our private boat went into somewhere between Positano and Praino that was much better - much less commercialized and the brilliant blue of the water was stunning. Best part, we had it all to ourselves! (it was very similar to the one in Capri but very secluded and natural to the surroundings without the commercialization). Only wish I knew the name to recommend but if you hire a boat off the main beach in Positano, I imagine it would be included as you cruise towards Amalfi.
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