At the Great Lake, one of the great menaces is the Water Hyacinth. The Water Hyacinth forms vast carpets, floating freely on the Lake and, in good conditions, triplicating in number every week. The carpets are a hotbed for water-borne diseases, like i. a. Malaria and Bilharziasis (Schistosomiasis). They also severely obstruct waterways and are a life-threatening danger for fishermen. We use environmentally friendly methods to remove the Hyacinths by leaving them intact and carefully not spreading their seeds into the water, preventing further spread of this plant. Once taken ashore, they are disposed of in an environmentally friendly way. In this task, we are strongly supported by the Kenyan Marine and Fisheries Institute, which is assisting us with vessels and technical support.