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Scuba diving at Octopus Reef in Zakynthos
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Octopus Reef

GREAT
ZakynthosBoat
About This Site
Octopus Reef is one of the most consistently listed dive sites along the Keri Peninsula, the cluster of limestone cliffs at the southern tip of Zakynthos near Marathias. It is a boat dive on a dramatic maze of giant limestone boulders that you weave through in the shallows before the seabed tumbles away down a steep wall past 30-40 m into the deep Ionian. The tangle of car-sized rocks, crevices and overhangs makes ideal hiding turf for the marine life the site is named for: reliable octopus, plus moray eels, lobster and skittish grouper tucked into holes in the reef. Sheltered on the south side of the peninsula and with a shallow boulder-garden top and a deep-wall option, it suits a broad range of divers while still rewarding those who drop deeper along the drop-off.

Difficulty

Intermediate

Max Depth

40m

Type

Boat

Typical Visibility

20m

Conditions Summary

Best time today

6AM - 12PM

GREAT

Best day in forecast

Today

GREAT

2026-07-11

Community-reported visibility

n/a

Warnings for today

None

Octopus Reef sits on the southern, seaward face of the Keri Peninsula at the southern tip of Zakynthos, in the Ionian regime where the swell that matters is the W-SW component funnelling up the channel. The peninsula bulk to the north and northeast fully shields the site from northerly weather and the summer meltemi influence, and the Marathias headland to the northwest cuts the WNW-NW sector, so the calmest conditions are the norm. The exposed window is the open Ionian from the S through SW, which is also the direction of the dominant swell — a sustained W-SW blow or a southerly storm builds surface chop and surge over the shallow boulder top and can force the dive to be moved to a more sheltered Keri site. The Laganas-bay side to the SE-E is partly screened by the cape point and its offshore rocks.

NNEESESSWWNW
Protected
Partially Exposed
Exposed
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Nearby Dive Sites
MS Zakynthos Ferry WreckBlue Caves (Cape Skinari)Marathonisi (Turtle Island)Keri CavesArch of Triumph (Arc de Triomphe)Barracuda Reef