Reefwander
Aerial view of a deep blue gulf leading into a long sheltered bay, with green hills, a small islet and a white town at the far end — Kefalonia & Ithaca

Kefalonia & Ithaca · Greece · Reef

Asteris Island

A rocky crest in mid-channel whose top forms a little island

Area photo: auteur · CC BY-SA 2.0

Asteris Island is a reef in the middle of the deep channel that separates Kefalonia from Ithaca, formed by a long rocky crest whose top breaks the surface as the little island of Asteris. Octopus, moray eels and nudibranchs are among the residents.

Also known as Asteris.

Where it is and how deep

Depth profile of Asteris Island: typical dive to 15 m (to 50 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit15 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

No published position for this site — the map shows Kefalonia & Ithaca and its other sites; operators know the mooring.

The dive

Below the little island the crest drops to 15 m and more, and the dive explores the rock for its sea life: octopus, moray eels and nudibranchs. Many remains from the past also lie on the reef.

Marine life and season

  • Octopus & cuttlefish
  • Nudibranchs
Month-by-month season rating for Asteris Island
JanFebMarAprMayJunJulAugSepOctNovDec
FairFairFairFairPrimePrimeGoodGoodPrimePrimeFairFair

Season follows Kefalonia & Ithaca: May–June and September–October bring the best visibility and smaller groups; August is the warmest month.

Sources

  1. Asteris Island — Fiskardo Divers
  2. Dive sites — Fiskardo Divers

More dive sites in Kefalonia & Ithaca

Cave & cavern

Shafts of light turning the cave chambers an intense blue

to 20 mbeginner

Cave & cavern

Several dark rooms and floors stacked inside one long cave

to 21 madvanced

Cave & cavern

Three small roof holes opening into a bell-shaped grotto

17–40 madvanced

Cave & cavern

A massive cave with a huge opening in its roof

to 26 mintermediate

Similar dives elsewhere

Reef

Americano

Lefkada & Meganisi · Greece

Nudibranchs by the dozen on shallow rock pinnacles

2–15 mbeginner

Reef

Cala de la Escalerica

Cabo de Palos & Islas Hormigas · Spain

Steps from the lighthouse car park into the cape's main shore dive

to 18 m · max 20 mbeginner

Reef

Cala Iza

La Herradura · Spain

A shallow cove lap, 6 to 15 m, best reached by boat

6–15 mbeginner

Reef

Fallen Lighthouse

Primošten & Rogoznica · Croatia

A reef grown over 2,000-year-old amphorae at 13-18 m

5–18 mbeginner