The cave is formed by the marine erosion of the same limestone cliffs that create the iconic white pebble landscape of Myrtos Beach.
The interior of the cave provides a natural acoustic chamber due to the concave shape of the cliff wall.
Water levels inside the cave fluctuate significantly with the tidal movements of the Ionian Sea.
Myrtos Cave is a small, naturally formed sea cavern located at the northern end of Myrtos Beach on the island of Kefalonia. The cave is accessible primarily from the beach itself, situated beneath the steep limestone cliffs that define the coastline. It serves as a sheltered nook providing shade from the intense Ionian sun. The geological structure is composed of eroded white pebbles and sedimentary rock consistent with the surrounding coastline. Visitors frequently use the cave as a refuge during high-tide shifts or peak heat hours. There is no formal infrastructure, signage, or maintained trail leading into the cave interior. It is considered a geological landmark rather than a formal tourist attraction.
From the cave opening looking back out toward the turquoise water and the white arc of the beach.
Bring water shoes to navigate the transition from large, loose white pebbles to the slick, uneven cave floor.
Check the tide levels before entering, as the cave floor can become completely submerged during high tide.
Monitor the cliff above the cave for potential falling debris, as this is an active geological area.
Do not attempt to climb the cliffs above the cave, as the limestone is unstable and prone to rockfalls.
Accessible only during the summer season when the beach is open to the public; frequently inaccessible during winter months due to high surf and coastal erosion.
Avoid carving into the limestone walls, as the rock is fragile and prone to erosion; keep noise levels low to preserve the natural acoustics.
