Everyone thinks "Campania beaches = Amalfi Coast" — but the BEST swimming in the region is on the Cilento coast (longer, sandier, cheaper) and the islands (Ischia's thermal beaches, Procida's color, Capri's blue).
Sandy, calm, Blue Flag. Sea caves by boat. The Cilento without the Amalfi crowds. 40/night hotels exist.
Accessible only by boat or 45 min hike. Voted most beautiful beach in Italy (Legambiente, 2014). Natural arch, crystal water.
FREE thermal hot springs where hot water bubbles into the sea. Walk down 200 steps. Swim in warm volcanic water at sunset. Magical.
Not a beach per se — a fishing harbor with the most colorful buildings in Italy. Swimming off the rocks. The film set of Il Postino.
The swimming side of Capri. Faraglioni views. Stabilimenti 30-60/day. Crystal water, deep immediately.
The second beach — smaller, better than Spiaggia Grande.
The locals' beach. Sandy cove next to Amalfi. Walk 5 min.