Comino Caves

Mgarr (Gozo) · Comino · Malta

Comino is a speck of limestone between Malta and Gozo, barely a square kilometre in area, permanently inhabited by a population you can count on your fingers. Yet this tiny island possesses one of the Mediterranean's most remarkable concentrations of diveable cave systems. The Santa Maria Caves on the northern coast offer a labyrinth of chambers, tunnels, and caverns where the interplay of Maltese water clarity and Mediterranean sunlight creates an underwater light show rivalling any cave dive on Earth. The dive boat departs from Mgarr harbour on Gozo, crossing the Comino channel in ten minutes. The caves are accessible only from the water, their entrances visible as dark openings in the island's low limestone cliffs. The mooring sits in a sheltered bay where turquoise water shimmers over white sand at 5 metres depth. Swimming toward the main cave entrance, I passed through a wide arch into an anteroom where the ceiling rose to air pockets and the walls narrowed ahead. The light changed immediately. Where outside the sun was white and harsh, inside it transformed to deep cobalt blue, filtered through metres of crystal-clear water and entering the chamber through a submerged window. The effect was otherworldly, as if diving in liquid sapphire. The cave system extends through multiple chambers connected by short tunnels. Each room has different character. One features a chimney open to the sky, admitting a column of white light into the blue darkness. Another has walls covered in orange sponges and red shrimp that retreat from torch beams. Cardinal fish hover in clouds at the boundaries between light and shadow. The water clarity at Comino is legendary, regularly exceeding 35 metres. Inside the caves this translates to perfect visibility of walls, ceiling, and the blue light sources simultaneously. For underwater photographers, these conditions create images that barely need post-processing. The combination of accessible cave diving, extraordinary light, and Malta's legendary visibility makes Comino a destination that underwater photographers return to repeatedly, chasing the perfect conditions when morning sun aligns with cave entrances.