This cave has been dug to transfer water from the mountainous areas south of the village and is unique in its kind. This cave is known in the local language as Giri Konar or Behdeh.
Kamjal is one of the technical valleys of Mazandaran provinces, which can be crossed only with complete canyon gears and having sufficient knowledge of this sport.
One of the most important attractions of this tourist area is its water springs, which, after merging, create a large river, which has become a factor for the creation of large gardens downstream of this promenade.
Rainbow Cave is located in the southeastern part of the island, about 10 km from Hormoz. It is a bit difficult to reach, but it can be crossed by everyone with caution.