Best beaches in Marathonisi

1 ranked beach in Marathonisi, Zakynthos

Ranked by the OnlyBeaches Index (OBI) — a 1-10 score blending water purity, conditions, crowd levels and vibe. Updated every 30 minutes.

All beaches in Marathonisi

1
Turtle Island Beach
Small beach on a protected island known for turtles and clear water.

7.0

What makes Marathonisi's beaches stand out?

Marathonisi sits in Zakynthos, Greece and is home to 1 ranked beach on OnlyBeaches. Every beach here is scored by the OnlyBeaches Index — a 1-10 metric blending water purity, live conditions (waves, water temperature, wind), crowd intelligence and vibe.

Whether you're after the highest-scoring beach in Marathonisi or a quieter hidden cove, the list above is refreshed every 30 minutes using live Stormglass and OpenWeather data.