Glide from Marina di Su Siccu around the dramatic Sella del Diavolo to hidden coves and the Grotta dei Colombi. This three-hour boat tour combines easy swims, snorkeling over Posidonia meadows, and close-up coastal scenery ideal for families and small groups.
More ways to explore the area's outdoor wonders
You push off from Marina di Su Siccu and the city’s stone silhouette recedes; the water takes on a clarity that seems to sharpen every cliff, every underwater ledge. The skipper eases the boat along the headland of Sella del Diavolo, whose saddle-shaped ridge juts into the Gulf of Cagliari, and the first coves appear—small, sheltered basins of emerald water cut into limestone.
Difficulty
easy
Duration
3 hours
Fitness Level
Suitable for people with basic mobility; able to climb into a dinghy and manage short swims.
Wildlife
History
Sella del Diavolo has archaeological layers from Phoenician and Roman eras and a local legend gave the promontory its "devil’s saddle" name.
Conservation
The Gulf hosts Posidonia oceanica meadows—avoid anchoring on seagrass and use reef-safe products to reduce impact.
Reserve your spot on the Boat Tour along the Cagliari Coast and Sella del Diavolo today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Morning departures are calmer
Book a morning slot—sea conditions and light for photos are often best before afternoon winds pick up.
Protect the seagrass
Avoid standing on or anchoring in Posidonia meadows; follow the skipper’s anchoring guidance to prevent damage.
Bring a waterproof phone case
You’ll want photos from the dinghy and in the cave—secure electronics in a waterproof pouch.
Wear reef-safe sunscreen and water shoes
Sunscreen protects both you and the marine life; rocky landings and dinghy transfers are easier with water shoes.
Swimsuit
Quick-drying suit for swims and snorkeling stops.
summer
Reef-safe sunscreen
Protects skin and local Posidonia ecosystems.
summer
Water shoes
Helpful for rocky dinghy landings and slippery cliffs.
summer
Waterproof phone case
Keeps photos and essentials dry during transfers and cave approaches.