Waves crashing at Hanakāpī’ai Beach, Kauai, Hawaii, USA

Hanakāpī’ai Beach is a stunning and secluded spot on the island of Kauai. Known for its rough conditions and rugged scenery, the beach is accessible via the Kalalau Trail – which also has a rep for treachery, but offers incredible views of the Nā Pali Coast. Should you resolve to visit Hanakāpī’ai, time the trek well or there may be no beach to reach: in winter, thunderous waves power-wash away the sand shelf, leaving little behind but jagged rocks. Even in summer when sand is present, caution is advised, as the surf is still highly dangerous to swimmers – or even bystanders close to shore.