01
Megali Spilia (Grand Cave)
20 minutesBest light in the morning
This is the largest cave, also known as Kianoun. The optical illusion of the glowing blue water is strongest here.
Explore
The Sea Caves System
The Blue Caves feature a series of limestone arches known for a glowing optical illusion.
These sea caves sit along the northwest coast of Zakynthos. Sunlight refracting through the clear water hits the white seabed, creating a bright turquoise glow. The effect is visible in depths of up to 4 to 5 meters.
You can only access the arches by sea. The caves have a maximum clearance of 4 meters. Book a boat with under 50 seats to physically enter them.
02
Mikri Spilia (Small Cave)
15 minutesWear water shoes
This tighter cave system sits next to the main arches. It provides a good spot for swimming and snorkeling among unusual rocks. Wear water shoes because the rocky edges are sharp and slippery.
03
Cave of the Priest
10 minutes
This sea cave sits beneath the coastal cliffs. Local folklore says a monk lived here and used natural remedies to heal people. Tour guides point it out as you approach from the south.
