Take a three-hour speedboat trip from Skiathos to the iconic Agios Ioannis chapel on Kastri rock, climb 110 carved steps to the viewpoint, and swim at secluded coves like St Ioannis and Spilia. Ideal for travelers who want a brisk, scenic half-day on the Aegean.
More ways to explore the area's outdoor wonders
The engine cuts through Aegean blue and the island cliffs rise like a challenge — by the time the speedboat threads a narrow channel, Kastri rock and the little white chapel used in Mamma Mia appear, perched on a stone plinth above the sea.
Difficulty
easy
Duration
3 hours
Fitness Level
Light fitness required—comfortable walking and the ability to climb 110 uneven steps.
Wildlife
History
The little white chapel (Agios Ioannis Kastri) is a modest local church that gained global recognition after it was used as a filming location in Mamma Mia; the wider islands have long histories of fishing, olive cultivation and modest maritime trade.
Conservation
These islands have fragile coastal vegetation and important marine habitats; stick to trails, avoid anchoring on seagrass meadows when possible and take all rubbish with you to minimize impact.
Reserve your spot on the Mamma Mia Chapel Visit on a Speed boat today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear grippy shoes
The 110 stone steps to the chapel are uneven and can be slippery—closed-toe shoes with traction make the climb safer.
Morning departure for calm seas
Winds typically pick up in the afternoon; earlier departures give calmer water for swimming and smoother rides.
Bring waterproof protection
Sun, spray and salt can damage cameras and phones—use a dry bag or waterproof case for valuables.
Respect the site
Stay on the carved path at the chapel and avoid climbing on fragile rock to protect the feature and local vegetation.
Closed-toe water shoes or sturdy sandals
Protects feet on the carved steps and provides traction on wet rock.
summer
Swimsuit and quick-dry towel
Several stops include swims from the boat at small coves and beaches.
summer
Sunscreen and hat
Strong Aegean sun and reflective sea increase UV exposure—apply liberally.
summer
Light windproof layer or windbreaker
Open-boat rides can be cool when crossing exposed stretches, especially in spring or late afternoon.
spring