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Adventure · Sicily, Catania

Snorkelling in the Cyclops Islands Marine Protected Area

  • Difficultyeasy
  • DistanceAbout 10 km (6 miles) north of Catania
  • Best seasonJune-September
  • PriceGuided snorkelling outings of about 1.5 hours are listed from about EUR 40 (~$46) per person with equipment; rates vary by operator
  • OperatorArea Marina Protetta Isole Ciclopi (established 1989, managed with the University of Catania and the Comune di Aci Castello) and licensed local boat and snorkelling operators such as those listed on freedome.it

Snorkelling in the Cyclops Islands Marine Protected Area (Area Marina Protetta Isole Ciclopi) takes place off Aci Trezza and Aci Castello, on the Riviera dei Ciclopi, about 10 km north of Catania in Sicily, Italy. The reserve was established in 1989 and is managed with the University of Catania and the Comune di Aci Castello.

Snorkelling around the basalt sea stacks (faraglioni) of Aci Trezza and Isola Lachea, led in many cases by a marine biologist, in a zoned marine protected area.

Snorkelling in the Cyclops Islands Marine Protected Area (Area Marina Protetta Isole Ciclopi) takes place off Aci Trezza and Aci Castello, on the Riviera dei Ciclopi, about 10 km north of Catania in Sicily, Italy. The reserve was established in 1989 and is managed with the University of Catania and the Comune di Aci Castello. Its landmarks are the basalt sea stacks (faraglioni) of Aci Trezza and the island of Isola Lachea, which according to local legend were hurled by the blinded Cyclops at Ulysses. Snorkellers swim over volcanic rock with fish, algae and other Mediterranean marine life, in a zoned protected area where rules limit fishing and anchoring. The activity is suitable for beginners: the main requirement is being a confident swimmer in open water. Age limits vary by operator, and children usually need a life jacket and supervision. Guided outings last about 1.5 hours and are listed from about EUR 40 per person with equipment, though rates vary by operator. They are run in many cases by a marine biologist, with licensed local boat and snorkelling operators such as those listed on freedome.it. Mask, snorkel and fins are included by guided operators; visitors bring swimwear, a towel, sun protection and water shoes for the basalt shore. The safety briefing covers the zoned areas, how to behave around marine life, and signals to the boat, and flotation aids are offered. Operators monitor sea conditions and cancel when swell or wind makes entry unsafe, and the harbour provides quick exit in an emergency. The season runs from May to October, and June to September offers the warmest, calmest water. Conditions to avoid include strong swell, wind from the east and poor visibility after storms. Half-day boat trips with several stops are also available. Visitors should not touch or collect marine life or rock, since the area is protected.

Practical information for Snorkelling in the Cyclops Islands Marine Protected Area · Last updated September 2026
Price Guided snorkelling outings of about 1.5 hours are listed from about EUR 40 (~$46) per person with equipment; rates vary by operator
Duration About 1.5 hours guided; half-day boat trips with several stops
Difficulty easy
Season June-September
Address Lungomare dei Ciclopi, 95021 Aci Trezza CT

Activity facts

Where
Aci Trezza and Aci Castello (Riviera dei Ciclopi)

Equipment

  • Swimwear and towel
  • Mask, snorkel and fins (included by guided operators)
  • Sun protection
  • Water shoes for the basalt shore

Location

Lungomare dei Ciclopi, 95021 Aci Trezza CT

37.5614, 15.1662 View on map

Highlights

  • Snorkelling around the basalt sea stacks of Aci Trezza and Isola Lachea
  • Marine protected area established in 1989
  • Guided outings led in many cases by a marine biologist
  • Equipment included on guided outings

Tips for visiting

  • Book in June-September for the warmest, calmest water
  • Wear water shoes for the sharp basalt shore
  • Use reef-safe sun protection and a rash vest if sensitive to sun
  • Do not touch or collect marine life, as the area is protected
  • Check the weather policy with the operator before paying

Frequently asked questions

Is snorkelling here suitable for beginners?

Yes, guided outings suit beginners who are confident swimmers, and equipment is included.

How much does it cost?

Guided outings of about 1.5 hours are listed from about EUR 40 per person, with rates varying by operator.

When is the best time to go?

June to September, with the season running from May to October.

What is the protected area?

The Area Marina Protetta Isole Ciclopi, established in 1989, covers the sea stacks of Aci Trezza and Isola Lachea.