Diani Beach is a beach on the Indian Ocean coast of Kenya. It is located 30 kilometres south of Mombasa, in Kwale County. The beach is about 17 kilometres long, from the Kongo river in the north to Galu beach in the south. Diani is a prominent tourist area of Kenya. The indigenous people of the area are the Digo, one of the nine ethnic communities of the Mijikā¦Diani Beach is a beach on the Indian Ocean coast of Kenya. It is located 30 kilometres south of Mombasa, in Kwale County. The beach is about 17 kilometres long, from the Kongo river in the north to Galu beach in the south. Diani is a prominent tourist area of Kenya. The indigenous people of the area are the Digo, one of the nine ethnic communities of the Mijikenda. Today the area includes Kenyans of various ethnicities who have migrated to Diani, drawn by the tourism sector. The Ukunda/Diani area had a population of 70,788 inhabitants in 2015. A small airstrip - Ukunda Airport - is located between the beach area and the Mombasa-Lunga Lunga road. The water is shallow near the shore at low tide, with underwater sandbars near the surface which allow wading with a clear view of the sandy bottom out to the offshore reef. Inland from the beach is extensive vegetation, including numerous palm trees which cover the coastal areas. The Mwachema River flows into the sea at Diani Beach.