The Rosh HaNikra grottoes are cavernous tunnels formed by sea action on the soft chalk rock. The total length is some 200 metres. They branch off in various directions with some interconnecting segments. In the past, the only access to them was from the sea and experienced divers were the only ones capable of visiting. Today a cable car takes visitors down to see the grottos. A kibbutz, also named Rosh HaNikra, is located nearby. The Israeli city Nahariya is located about 10 km (6 miles) south of Rosh HaNikra. you must take a cable car to get into the grottoes. The Cable car is situated very close to the Lebanese border. A Makhtesh is a geological landform considered unique to the Negev desert of Israel. A makhtesh has steep walls of resistant rock surrounding a deep closed valley which is usually drained by a single wadi. The valleys have limited vegetation and soil, containing a variety of different colored rocks and diverse fauna and flora. The best known and largest makhtesh is Makhtesh Ramon. Other makhteshim are Makhtesh Gadol, Makhtesh Katan and Mount Arif two small Makhteshim the Makhtesh is also a rare geological area. Sepphoris was an ancient Jewish village with synagogue, houses, baths, water tunnels, crusader fortress and more. it was also one of the site of the house of Anne and Joachim. Hula Lake Park, known in Hebrew as Agamon HaHula, is located in the southern part of the Hula Valley, north of the nature reserve. It was established as part of a JNF rehabilitation project. In the early 1990s part of the valley was flooded again in the wake of heavy rains. It was decided to develop the surrounding area and leave the flooded area intact. The new site has become the second home for thousands of migrating birds in the autumn and spring. The lake covers an area of one square kilometer, interspersed with islands that serve as protected bird nesting sites. It has become a major stopover for migrating birds flying from Europe to Africa and back, and also a major birdwatching site. In 2011, Israeli ornithologists confirmed that Lake Hula is the stopover point for tens of thousands of cranes migrating from Finland to Ethiopia every winter. In Israel, farmers set out food for them to keep them from damaging crops near the lake.