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White cliffs of Bonifacio, the Grain de Sable rock and the upper town in the distance
Bonifacio and the coast

Bonifacio by boat: cliffs, caves and the King of Aragon's staircase

Updated · Independent guide, sourced information

Bonifacio's cliffs and the Grain de Sable. Photo: Isiwal, CC BY-SA 3.0

The best way to see Bonifacio is from the sea: the upper town sits on a white limestone cliff 60 to 80 metres high, undercut by the waves. SPMB circuit no. 1 (1 h 05, €26 per adult in 2026) runs along the cliffs, the King of Aragon's staircase, the Grain de Sable, the caves and Cape Pertusato. This tour is easy to combine with a Lavezzi trip on the same day.

Key facts

  • SPMB circuit no. 1: 1 h 05, €26 adult, €16 child, no booking (2026).
  • Cliffs 60 to 80 m high, a staircase of 189 steps carved into the rock.
  • The Grain de Sable: an isolated block at the foot of the cliffs.
  • On GetYourGuide, « Visit Bonifacio by sea »: from €35, 4.9 out of 5 (361 reviews).

What you see from the boat

Sight What it is
The upper town citadel on a limestone headland 1,600 m long and 100 m wide
The cliffs limestone plateau 60 to 80 m high, undercut by the sea
The King of Aragon’s staircase 189 steps carved into the cliff at about 45°
The Grain de Sable a large block standing alone at the foot of the cliffs
The caves including the one known as Napoleon’s hat, mentioned by SPMB
Cape Pertusato Corsica’s southern tip and its lighthouse, lit in 1844

The King of Aragon’s staircase

Legend says the troops of Alfonso V of Aragon dug it in a single night during the siege of Bonifacio in 1420. In reality it was carved over a longer period by Franciscan monks to reach a freshwater spring at the foot of the cliff. Seen from the sea, it looks like a dark diagonal line running the full height of the cliff.

The King of Aragon's staircase cut diagonally into the Bonifacio cliff
The King of Aragon's staircase, seen from the sea. Photo: Myrabella, CC BY-SA 3.0

You can also walk down it from the upper town: see things to do in Bonifacio.

The limestone cliffs and upper town of Bonifacio seen from the sea
The upper town, perched on the edge of the cliff. Photo: Isiwal, CC BY-SA 3.0

The tours

Trip Duration Price “from” Booking
SPMB circuit no. 1, Bonifacio essentials 1 h 05 €26 adult, €16 child no
Visit Bonifacio by sea (GetYourGuide) 1 h 30 €35 online
SPMB circuit no. 3, cliffs, Lavezzi and Cavallo 2 h €40 adult, €29 child advised

Checked on 9 November 2026. Circuit no. 1 reopens in April 2027; in winter, SPMB runs a non-stop circuit covering the cliffs and islands (11 am and 2 pm, €40).

Cliffs in the morning, Lavezzi in the afternoon

The cliff tour takes an hour: you can do it in the morning and take the Lavezzi shuttle in the afternoon, or pick a trip that combines both (see the boat trip comparison).

Book a trip

See the cliffs from the sea

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Frequently asked questions

How long is the Bonifacio boat tour?

About an hour: 1 h 05 for SPMB circuit no. 1, 1 h 30 for the « Visit Bonifacio by sea » trip on GetYourGuide.

Can I combine the cliffs and Lavezzi?

Yes. SPMB circuit no. 3 (2 h, €40) takes in the cliffs, Lavezzi and Cavallo without stopping, and several half-day trips from Porto-Vecchio also pass the cliffs.

Do I need to book the cliff tour?

SPMB says its circuit no. 1 needs no booking, with departures roughly every hour from 10 am in season.

Sources

Information checked against the sources below. Timetables, prices and rules change: confirm before you go.