Pedra do Sal

Parnaíba, PI

Pedra do Sal is in Parnaíba, on the Piauí coast in Brazil, and works best on a north swell. A south wind blows offshore here — from land to sea — and holds the waves up; with wind from the opposite side, the same swell shows up blown out. Tides come from the Porto de Luís Correia tide tables, 7 mi away.