Establishment of these exhibits depends on the solution of the security problem and in the case of some of the exhibits the development of a reliable water supply which would be necessary during the dry season. No special priority is given to particular exhibits as each will have its own peculiar requirements for infrastructure. However technical planning of the exhibits is proceeding. As the programme develops other special exhibits will be considered. The savannah and the wetland is envisaged as a single unit.
Tropical savannahs develop under very special conditions of seasonal inundation and desiccation.
To achieve this in the gardens it will be necessary to lay down a plastic liner and cover it with about 25 cm of Aripo sand. By varying the topography of the sand slightly a range of micro climates will be created and typical flora will be planted. The outflow of the savannah will lead into the small freshwater wetland, which will be similarly lined with a plastic finer which will be covered with a layer of spoil. The pond created will be planted with typical freshwater plants. The system will be provided with a slightly elevated walkway over the exhibits.