Rarrk or cross hatching is a style of painting which is from a particular area of north eastern Northern Territory.

It covers a very large area, 97,000 square kilometres and very few people live in the region mostly in about six small communities.

This area is called Arnhem Land.

For this group of Aboriginal Australians all things from the water both fresh and saltwater are important and part of their daily lives.

These paintings are paintings usually done on dried and cured bark or other modern art materials.

It is a style of fine line painting done originally with grass but now is done with brushes.

It is also called cross hatching because the technique requires the application of many parallel lines.

The more advanced technique looks as if the applications of lines have been woven into the painting.