Ferry trip to Paestum or Ischia and Capri including the Blue Grotto during summer months.
Or if you are after luxury, charter a private motor-boat with Charter La Dolce Vita (http://www.amalficoastyac...) and you can design your own itinerary with the captain. Suggested ideas include departing Positano for a full-day tour to Capri, circling island with the grottos or out to Ischia, or along the Sorrento Coast or just cruising along the Amalfi Coast.
Soak up the beauty on either of Positano's two beaches: Fornillo, the smaller, more secluded beach is accessible either by a set of stairs from the grotto above or via a path from Spiaggia Grande. Fornillo has a more laid back atmosphere with four beach bars lining the shore and no ferry traffic. Spiaggia Grande, the main beach and ferry port, is the hub of activity in Positano. Don't miss it, but don't forget there is much more to Positano.
