Cagliari looks best from the water. From the sea, the old town rises tier by tier from the port to the Castello walls, the white towers catch the afternoon light and the long curve of Poetto beach runs towards the headland known as the Sella del Diavolo, or Devil's Saddle. A boat trip leaves from the marina, heads out across the Gulf of Angels and spends most of its time along the limestone cliffs and coves beneath the headland, where the water is clear and the shoreline is almost empty. Most departures are small-group boats, such as inflatables or sailing boats, with a skipper who knows the coast. The programme normally includes several swim stops, snorkelling over rocks and seagrass and a light aperitif of local snacks and drinks. It is an easy, sociable way to spend a morning or an evening, and it fits neatly around a city sightseeing day.
What you see
The city skyline from the water, the cliffs of the Sella del Diavolo, sea caves and small coves reached only by boat. Birds nest on the rocks, and the water is often clear enough to see fish around the boulders. On some departures the skipper points out hidden beaches and ruins of old fortifications along the shore.
Choosing how to do it
Shared boat trips are the best value. Choose a morning departure for calmer water and fewer boats, or a late-afternoon or sunset trip for warm light and an aperitif as the sun falls. Sailing boat departures are slower and quieter, and motorised inflatables cover more coast in the same time. If you want a hike instead, the Devil's Saddle walking route is covered separately.
When to go
The season for swimming runs from about May to October, with the warmest water in July to September. Spring and autumn departures are cooler and quieter, and in winter trips are limited or stopped. Wear swimwear under your clothes, bring a towel, sun protection and a light layer for the breeze. Sea conditions can change, and trips may be moved or cancelled because of wind, so check the terms when you book.
Practical notes
Cagliari's marina is a short walk from the old town, so the trip fits easily around a day of sightseeing. Many visitors choose the morning departure and spend the afternoon in Castello, while others prefer the late-afternoon trip and finish with dinner in the Marina district.
If you come on a cruise, check the timing against your ship's schedule and leave a generous buffer for the return. Sea sickness is rare in the gulf on calm days, but small boats move with the swell, so take a tablet if you are prone to it.
The headland is a protected area, and landing on its beaches is limited, so swimming stops are done from the boat. Bring a dry bag for phones and keys, and wear a hat, since there is little shade on small inflatables. Boats are small, so ask about the maximum group size, and tell the crew about any mobility needs before boarding, since getting on and off a low pontoon can involve a short step.
What to expect
The experience
A small-group boat trip from Cagliari's marina along the Gulf of Angels, with swim and snorkel stops and a light aperitif.
Best time
Morning for calm water, or late afternoon for golden light; May to October for swimming.
How long
About three hours, including swim stops.
Tips
Wear swimwear, bring a towel and sun protection, and confirm the meeting point at the marina.
Quick picks
- Best for
- Visitors who want a short, scenic sea trip from the city.
- Families
- Good for children who can swim or wear a life jacket; check age limits.
- Couples
- A sunset departure with an aperitif is a relaxed evening plan.
- Pair with
- The Castello old town, the Devil's Saddle hike or Poetto beach.
- Time needed
- Half a day.
Good questions
Do I need to swim?+
Swimming is optional. You can enjoy the scenery and the aperitif without entering the water.
Is snorkel gear provided?+
Many boats provide masks, but confirm in the inclusions and bring your own if you have one.
Can I go in winter?+
Trips are mostly seasonal, and in cooler months they run less often. Check departures before planning.
What happens if the wind is strong?+
Operators may change the route or cancel for safety. Read the cancellation terms when you book.
Where do boats leave from?+
Departures are normally from the marina or port in Cagliari. The meeting point is given when you book.
