Alghero to Pau Road Trip: Complete Guide

The journey from Alghero to Pau spans approximately 350 kilometers (217 miles) of coastal and mountainous roads, including a 2-hour ferry crossing from Santa Teresa di Gallura to Bonifacio. A peculiar local quirk: the stretch near Castelsardo features a stretch of road where the asphalt changes color from black to reddish due to the high iron oxide content in the local aggregates.

This route, while relatively short, offers a dramatic shift from Sardinia's Mediterranean coastline to the rugged interior of Corsica. Driving time is around 5-6 hours excluding the ferry, making it a full-day adventure.

The primary road from Alghero to Santa Teresa di Gallura is the SP19 and SS131, a well-maintained two-lane highway with sections of four-lane expressway. From Bonifacio to Pau, the N196 and D268 are narrower but in good condition. Tolls apply only on the Italian mainland, not on this route.

• Fuel stations: There are sufficient stations along the SP19 and SS131, but in Corsica, stations are fewer; fill up at Bonifacio or Porto Vecchio.
• Estimated fuel cost: approx. €45 (15 € per 100 km) for a medium car.
• Fuel efficiency tip: Maintain 90 km/h on coastal roads to save fuel; use cruise control on straight sections.

The road surface is generally good, but watch for the notorious 'venturi effect' winds near Porto Torres section of the SS131, which can buffet small cars. Night driving is safe on well-lit sections, but the ferry crossing in darkness is not recommended. Toll gates: none.

• Family suitability: Aquarium of Alghero, the Labyrinth of Castelsardo (a maze), and the dolmens near Arzachena (Sardinia) are great for kids. In Corsica, the Îles Lavezzi boat trip entrances children.
• Pet-friendly: Dogs are allowed on the ferry (check with operator), and many restaurants in Sardinia have outdoor pet-friendly tables. Walk your dog at Capo Testa's scenic cliffs.
• Fatigue management: Take a 15-minute break at the rest area near Valledoria (km 40 on SP19) with sea views. Another safe nap spot is the parking at Spiaggia dei Francesi (Corsica) before Bonifacio.

The drive from Alghero to Castelsardo offers views of the Mediterranean scrubland (macchia) and the Gulf of Asinara. After Castelsardo, the road ascends through granite hills, with glimpses of the Corsican mountains across the strait.

• Natural highlights: Capo Testa (granite rock formations), Lavezzi Islands (from Bonifacio ferry), and the Bavella Needles (detour from Porto Vecchio).
• Local commerce: In Castelsardo, buy handmade basketwork; in Bonifacio, local honey and Corsican cheese (brocciu). Roadside stalls near Santa Teresa sell fresh seafood and Vermentino wine.
• Culinary infrastructure: Trattoria Da Nino (Castelsardo) for fregola con arselle; L'Ancora (Santa Teresa) for spaghetti alle vongole; Le Bistrot de Cala Rossa (Corsica) for charcuterie.