Cova de Can Marçà
Carved into the cliffs above Port de Sant Miquel, just 12 km north of Sant Antoni, Cova de Can Marçà is a 100,000-year-old cave system that smugglers used for centuries to hide contraband — today a 35-minute guided tour winds through stalactite chambers to a dramatic underground waterfall with a light-and-sound show.
Inside the Cave
The cave descends through a series of chambers studded with stalactites and stalagmites, some stained ochre and rust by mineral deposits, others pure white — the scale is genuinely impressive for a relatively compact cave system, and the audio guide explains both the geology and the smuggling history with entertaining specificity.
The centrepiece is a subterranean lake and an artificial waterfall lit by coloured lights — theatrical, yes, but the natural acoustics and the cool air (a constant 16°C inside) make it a genuinely memorable 35 minutes, especially welcome on a scorching August afternoon.
Combining with Port de Sant Miquel
The cave entrance sits on a clifftop path above the sheltered, almost fjord-like bay of Port de Sant Miquel — after the tour, walk down to the beach for a swim in calm, protected water backed by pine-covered hills.
The nearby Bar Flotante (a floating bar moored in the bay) serves cold drinks and fresh fish — it is one of those only-in-Ibiza spots that feels like it shouldn't exist but absolutely does.
More of Sant Antoni de Portmany
Discover where to stay, what to do and the best deals for your trip.
Explore Sant Antoni de Portmany →
