Cala di Palu rewards the hike-in with water clarity that borders on hallucinatory. You wade across pebbles into shallows where every stone on the seabed is visible in perfect detail, the light refracting through the water in shifting geometries of turquoise and sapphire. Snorkeling here means drifting over a landscape of white sand, dark boulders draped in kelp, and darting schools of salema porgy that pivot in unison when you swim too close.
“Piana's most spectacular turquoise-water cove beyond the well-known Arone and Ficajola, accessible only to those willing to hike and rough it.”
Crashing wave at sunset on the shoreline
The beach itself is tiny—room for perhaps a dozen people if everyone's friendly about spacing—and hemmed in by cliffs that glow coral and amber in afternoon light. There's no shade except the brief shadow cast by the rock wall, so midday can be punishing. But arrive early or linger late, and you'll have the cove nearly to yourself, the silence broken only by wavelets lapping stone and the occasional splash of a jumping fish.
Bring water, snacks, and reef-safe sunscreen, because there's no infrastructure and no easy escape once you've made the descent. The path back up is a thigh-burner, but the memory of that water—impossibly transparent, bathtub-warm in the shallows, bracingly cool where it deepens—will carry you through every switchback.