When is the best time to dive Marathonisi (Turtle Island)?

The typical diving season is June to September. Conditions vary year to year, so confirm locally before booking.

Is Marathonisi (Turtle Island) good for snorkelling?

Yes - snorkelling is viable here. Yes - main activity; two sea caves on the islet are noted as good snorkel spots

Greece · Ionian - Laganas Bay, Zakynthos

Marathonisi (Turtle Island)

Best time to dive

June to September

What you might see

Sea turtleLikely

Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.

Certification & difficulty

Technical

Snorkelling

Snorkel-friendly - Yes - main activity; two sea caves on the islet are noted as good snorkel spots

Safety notes

Strict protected-zone rules: visitors must stay within 5m of shoreline, keep 15m distance from turtles, no venturing onto the island interior; boats capped at 6-knot speed and no anchoring; daily visitor cap ~200 people

Permits & fees

Regulated under the National Marine Park of Zakynthos (NMPZ) - no independent diving permitted; access only via licensed tour boats (~€15-25/person)

Permits and operators change - confirm before booking.

Location

Nearest hub: Laganas

This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.