The Blue Cave is the biggest of the half-sunken caves in the calanques, after Cosquer. It is usually the easiest to reach. It is not pinned on the IGN maps, but it is quite well known in Marseille. We can hike or boat there, and even stop there to swim during private boat excursions in the calanques. Don’t worry, you can swim there, and if the sea is quiet you can even reach it by canoe. You will directly be inside a vast place, with rocky blocks in the bottom (be careful, it is slippery). The best thing to do is go there in the morning until the beginning of the afternoon, for a perfect light, and be able to watch the water lighted with blue color.
How to get there
- Location: The Blue cave is located in a small creek on the East side of the Calanque de Morgiou, about 300 meters after the fallen rocks in the direction of Sugiton. Its entrance is 50 cm above the surface, but you can only sea it from sea.
- Walking route (700 meters): From Morgiou port, go to the left and take the red-marked path that starts at the end of the bank, at the Louis XIII stairs. When you are above the small beach, follow the same path going up on the left, through the rocks and the roots. Then keep going on the path, you have the cliffs on the left and the calanque down on the right. After 5 minutes you get to a pass where you can see the coast up to the Bec de l'Aigle (La Ciotat). Then there is the small valley to reach the cave. Go down to the sea, turn left and go 30 meters along the sea to the small creek. There you are!
- Recommendations: If you want to feel like an explorer and be alone in the blue cave, be there before 10:30. Later, the boats arrive and people start to swim.