Reefwander
Rocky shoreline with grey boulders in clear blue water below a dry scrubby hillside, a dirt footpath and a small breakwater in the distance — Mirmigi Reef, Lesbos

Lesbos · Greece · Reef · Cave & cavern

Mirmigi Reef

A shallow labyrinth of volcanic corridors for the safety stop

Photo: Ronald Saunders from Warrington, UK · CC BY-SA 2.0

Mirmigi Reef is a large volcanic reef five minutes by boat from Petra, in north-western Lesbos. A small canyon with a swim-through cave, a meadow of peacock worms and a maze of shallow corridors give it varied topography, and currents are usually absent.

Also known as Myrmigi Reef, Myrmigi, Mirmigi.

Where it is and how deep

Depth profile of Mirmigi Reef: typical dive 5–36 m (15–118 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit5 m36 mtypical dive
Depths on a shared scale to 50 m (164 ft); dashed lines mark common certification limits.

39.3282° N, 26.1408° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.

The dive

The dive starts at 5 m on volcanic rock, and the reef falls away to 36 m. A small canyon holds a cave that can be swum through and exited on the far side, or simply circled from outside.

Heading anticlockwise, the reef shows many nudibranchs, lobsters and moray eels, then a meadow scattered with short, rare peacock worms. The dive ends in a mini labyrinth of underwater corridors at about 6 m, which serves as the safety stop.

Marine life and season

  • Nudibranchs
Month-by-month season rating for Mirmigi Reef
JanFebMarAprMayJunJulAugSepOctNovDec
FairFairFairGoodGoodGoodGoodGoodGoodGoodFairFair

Season follows Lesbos: Boats run from April or May to October, while the sea warms from about 15 °C (59 °F) in April to 25 °C (77 °F) in August.

Dive videos

Mirmigi Reef, Lesvos, Petra 2014 HD · Robert van der Woude on YouTube

Questions divers ask

Does Mirmigi Reef have currents?+

Usually not. The reef still continues down to 36 m, so depth rather than water movement sets the level of this dive.

Sources

  1. MIRMIGI REEF — Scubahellas
  2. Myrmigi Reef (Petra) — Dive in our Islands
  3. Petra, Lesbos — Wikipedia

Photo credits

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