Reefwander
Aerial view of Katapola bay on Amorgos, white village around a harbour full of moored boats.

Mediterranean · Greece

Amorgos

A 40 m wall under the monastery filmed in The Big Blue

Photo: Kondephy · CC BY-SA 4.0

Amorgos is the easternmost island of the Cyclades, reached only by ferry, with one dive centre on Aegiali bay and another at Katapola that split the coast between them. The signature dives are walls: Agi Anna, under the Hozoviotissa monastery from The Big Blue, runs flat to 18 m then drops to about 40 m, and the Nikouria wall does much the same off the islet between the two ports. Around them lie caverns, a Neptune grass meadow, a scattered Second World War debris field and shore dives shallow enough for a first tank.

About diving in Amorgos

Diving here runs from two harbours. Amorgos Diving Center has worked the Aegiali bay beachfront since 2007 and takes the northern cluster around Nikouria islet and Grabonissi; WE SHALL SEA, based at Katapola, is credited with the southern sites around Kalotaritissa. Boats are day boats, not liveaboards: the Aegiali centre runs trips at 08:00 and 14:00 and sells night dives. Several of the named sites are shore dives, so a day can mix a boat wall in the morning with a walk-in cavern in the afternoon.

The terrain is shelf and wall. Agi Anna is flat to 18 m before the wall falls to about 40 m, and Nikouria slopes to the same depth; Nikouria Northern Wall holds a cavern at around 25 m, Small Sparti Caves opens a passage through fallen rock at about 18 m, and the Cathedral has a chimney that drops sunbeams into it. A huge Neptune grass meadow near the Nikouria cavern carries fan mussels, nudibranchs and pipefish, and damselfish, groupers and wrasses hold on the rocky reefs. Blue Dive is different in kind, a drop into open water from a fishing boat.

It suits divers who want variety on a quiet island and are content to reach it by ferry: shore entries and a training bay at one end, 40 m walls and a blue-water drop at the other, with amphorae and mine workings in between. It is not a big-animal destination; the logged sightings are octopus, parrotfish, moray and barracuda rather than anything pelagic. Wreck diving is thin as well. Little Wreck is a debris field trailing past recreational depth rather than a hull to swim, and the one dedicated wreck trip on the Aegiali price list, to a wreck listed as Manina 3, runs only when the weather allows. Divers who want an intact marquee hull are better served by the Zenobia at Larnaca.

Best time to dive Amorgos

Amorgos season rating, sea surface temperature, daytime high and rainfall by month, 2011–2025 averages
JanFebMarAprMayJunJulAugSepOctNovDec
SeasonFairFairFairFairGoodPrimeGoodGoodPrimeGoodFairFair
Sea surface17°C63°F17°C63°F17°C63°F17°C63°F19°C66°F22°C72°F24°C75°F25°C77°F24°C75°F22°C72°F20°C68°F18°C64°F
Daytime high18°C64°F17°C63°F18°C64°F22°C72°F25°C77°F29°C84°F30°C86°F30°C86°F29°C84°F25°C77°F22°C72°F19°C66°F
Rain102 mm4.0 in76 mm3.0 in49 mm1.9 in29 mm1.1 in19 mm0.7 in8 mm0.3 in2 mm0.1 in3 mm0.1 in16 mm0.6 in42 mm1.7 in58 mm2.3 in89 mm3.5 in
Amorgos season rating, sea surface temperature, daytime high and rainfall by month, January to June, 2011–2025 averages
JanFebMarAprMayJun
FairFairFairFairGoodPrime
Sea surface
17°C63°F17°C63°F17°C63°F17°C63°F19°C66°F22°C72°F
Daytime high
18°C64°F17°C63°F18°C64°F22°C72°F25°C77°F29°C84°F
Rain
102 mm4.0 in76 mm3.0 in49 mm1.9 in29 mm1.1 in19 mm0.7 in8 mm0.3 in
Amorgos season rating, sea surface temperature, daytime high and rainfall by month, July to December, 2011–2025 averages
JulAugSepOctNovDec
GoodGoodPrimeGoodFairFair
Sea surface
24°C75°F25°C77°F24°C75°F22°C72°F20°C68°F18°C64°F
Daytime high
30°C86°F30°C86°F29°C84°F25°C77°F22°C72°F19°C66°F
Rain
2 mm0.1 in3 mm0.1 in16 mm0.6 in42 mm1.7 in58 mm2.3 in89 mm3.5 in

2011–2025 averages. Sea surface: NOAA Coral Reef Watch, measured at the surface, so deeper water can run colder. Daytime high and rain: NASA POWER.

Courses and testimonials cluster June to October, with October unpredictable. The meltemi unsettles late summer; winter winds and currents put some sites out of reach without closing the island.

Best months: June, September

Amorgos water temperature and weather by month

The sea surface runs from 17 °C (63 °F) in March to 25 °C (77 °F) in August. It is 24 °C (75 °F) or warmer from July to September. Most rain falls from October to March, peaking at about 100 mm (3.9 in) in January; it stays largely dry from May to September. Daytime highs reach 30 °C (86 °F) in July and drop to 17 °C (63 °F) in February. The coldest water here is about 16 °C (61 °F), so pack a 7 mm suit with a hood, or a semi-dry.

Dive types & marine life

Rock and seagrass life rather than big animals. Barracuda school at Barracuda Point on almost every dive, and community logs record octopus, parrotfish, moray, scorpionfish and invasive lionfish concentrated June to September, with nudibranchs on the rock and fan mussels and pipefish in the Neptune grass. Damselfish school along the Aegiali wall.

  • Wall
  • Cave & cavern
  • Reef
  • Wreck
  • Pelagic & blue water
  • Night
  • Barracuda
  • Groupers
  • Octopus & cuttlefish
  • Nudibranchs
  • Reef fish swarms

Best dive sites in Amorgos

Flat reef to 18 m, then a wall to about 40 m

18–40 madvanced

A wartime debris trail from 13 m past recreational depth

13–60 madvanced

A pocketed wall sloping to 40 m off Nikouria islet

to 40 madvanced

Bauxite loading gear on an 18 m plateau below the mines

to 18 mintermediate

Cave & cavern

A narrow passage under fallen rock, entered at about 18 m

5–35 mintermediate
  • Cathedral

    Shore dive whose chimney lets sunbeams into the cavern; a wall runs alongside it.

  • Barracuda Point

    Shore dive for all levels; a large school of barracuda shows on almost every dive.

How to get to Amorgos

There is no airport; Amorgos is reached only by boat, into either Aegiali or Katapola, the two ports the dive centres work from. Blue Star ferries run from Piraeus year-round in about nine hours, with faster seasonal catamarans and summer inter-island connections to Santorini, Naxos and Paros.

Photos from Amorgos

  • Zde · CC BY-SA 4.0

  • User:internationalgreg · CC BY-SA 3.0

  • Oliwan · CC BY-SA 3.0

Photo credits

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