Rosh HaNikra Grottoes, located in Northern Israel, are geological formations created by the Mediterranean Sea crashing against the white chalk cliffs. A cable car provides access down to the grottoes, making it accessible for most visitors. Exploring the grottoes can be done independently, though guided tours offer deeper insights into their formation and history. Be aware that sea conditions can sometimes restrict access to certain parts of the grottoes, especially during stormy weather. The approximate cost for entry and the cable car is around 50-70 shekels, and a typical visit lasts 1-2 hours, allowing ample time to explore the illuminated tunnels and sea caves.