Dune Rose, or Koïma, is a striking sand dune on the Niger River's right bank near Gao, Mali, famous for its pink hue at sunset. Locals once associated it with magicians, adding cultural intrigue to its natural beauty. Accessible only from September to February due to water levels, visitors often pair the trip with a pirogue ride to nearby dunes at Quema and Hondo or to spot hippos at Tacharan.