Use an underwater scooter to glide over basalt columns, WWII wrecks and sandy canyons off Aci Castello. Guided by marine biologists, this 3–4 hour dive combines volcanic geology and abundant marine life—ideal for certified divers who want a fast, immersive underwater tour.
Use an underwater scooter to glide over basalt columns, WWII wrecks and sandy canyons off Aci Castello. Guided by marine biologists, this 3–4 hour dive combines volcanic geology and abundant marine life—ideal for certified divers who want a fast, immersive underwater tour.
Book with Etna & Sea Excursion
Book directly with Etna & Sea Excursion for the best rates and real-time scheduling.
Reserve NowVerified experiences and guided adventures in the surrounding area.
Operated by Etna & Sea Excursion · Aci Castello, Sicily
A low afternoon sun slants across the black basalt ramparts of Aci Castello as divers rig their scooters on the quay, the sea smelling faintly of brine and volcanic rock. Slip beneath the surface and the current seems to push you forward, sending you along a corridor of lava pillows, basalt columns and pale sand; schools of sea bream part like curtains to let the scooter pass.
moderate.
3–4 hours.
Moderate fitness and comfortable swimming ability; buoyancy control is important though scooters reduce exertion.
Yes—participants must present an open-water scuba certification or equivalent; operators may accept advanced or refresher proof depending on experience.
Typical profiles are shallow to moderate (10–30 meters) along lava ridges and canyons; your guide will plan depths based on conditions and group experience.
Tours can be canceled for bad weather or low visibility; operators usually offer full refunds if they cancel at least 24 hours before departure.
Yes—the route often passes WWII wrecks and habitats with sea bream, octopus, sponges and sea fans; sightings depend on season and visibility.
The Cyclops Islands and Aci Castello are the product of Etna’s lava flows; the rocky stacks are referenced in local mythology and have hosted fishing communities for centuries.
This area benefits from marine protected status—avoid touching fauna, use reef-safe products, and follow guide instructions to minimize impact.
Etna & Sea Excursion operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




Book with Etna & Sea Excursion
Book directly with Etna & Sea Excursion for the best rates and real-time scheduling.
Reserve Now