Cave Tunnel

Zakynthos Island, Ionian Islands, Greececave35 m maxintermediate

Conditions

Cave TunnelZakynthos Island

Good · 5/5

conditions visualisation

Good5/5

Calm and diveable right now — best window today 8 AM–6 PM.

Wind8 kn SE

Current~0.5 kn W · model

Swell

0.5 m · 4s · S

Water

22 °C

Max depth

35 m

Conditions through the day

7 AM7 PM

Sunrise 07:08 · Sunset 17:32 local

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Outlook — select a day for full conditions

On-face swell 0.3 m — the component of the swell aimed at this site’s exposed face. Current is a regional model value (Copernicus, ~9 km grid) — a guide to the area, not a precise reef measurement. Imagery © Esri · not depth or visibility.

Scored by DiveConnect's site-physics model

Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.

Dived here today? How were conditions vs. what we showed?

About this site

Cave Tunnel is a cavern and cave dive about half an hour from the harbour, one of the best dive spots in the Mediterranean according to the local divers. It suits both beginners and experienced divers.

The main feature is a huge cavern about 35 m long, as big as a cathedral. Three divers can swim side by side, and the depth is just 8 to 10 m. This cavern part is fine for everybody.

After 35 m the full-cave part begins. It is only for experienced divers used to an overhead environment. It leads into a cave with many corners and holes, with crabs, lobsters, Spanish lobsters and often a monk seal.

Read the full guide

It is possible to exit through the cave to the other side of the mountain. The exit looks like a huge butterfly, which is why the site is also called the butterfly cave.

AI-written site guide