The Penyal d'Ifac is an enormous limestone outcrop — 332 metres high — that juts directly out of the sea at the edge of Calpe. It is a protected nature reserve and the summit trail takes about an hour each way, passing through a tunnel cut into the base of the rock and climbing steeply through garrigue scrub to a viewpoint that, on a clear day, takes in Ibiza and even the Pyrenees.
The lower slopes of the park are good for birdwatching — yellow-legged gulls nest on the rock, and Audouin's gulls are sometimes seen below. The reserve is free to enter but visitor numbers are capped, so arrive early in summer. The path is well-marked but the final section requires some scrambling; good shoes are essential.