Mardalsfossen waterfall is one of the ten highest waterfalls in Europe. The falls are on the Mardøla river which flows into the Eikesdalsvatnet lake, about 2 kilometres northwest of the Eikesdal village. The waterfall is depicted in Nesset´s coat-of-arms. The total fall is 705 metres and consists of two large drops and several smaller ones lower down. The highest vertical drop, which is 358 metres, is one of the tallest in Norway. It is on average 24 metres wide. It is a tiered waterfall. The water, which has been tapped for hydroelectric use, flows over the falls during the summer tourist season of 20 June to 20 August. At other times the water is channeled through the hydroelectric scheme. There is a 45-minute walk from the parking in Mardalen.

This area is very mountainous, surrounded by peaks up to 1964 meters high, which caused the architecture in this valley to be different than that of other villages. Eikesdal village is located at the south end of the Eikesdalsvatnet lake at the mouth of the Aura river. The lake is about 20 kilometers long and 155 meters deep. Kleneggen (1964 meters) is Eikesdal´s highest mountain. The Mardalsfossen waterfall lies about 2.5 kilometres northwest of the village.