Mozambique has gone from being underwater, to being critically short of any water following Cyclone Idai.
The inland ocean of floodwaters is starting to recede after last month's storm, the worst in southern hemisphere history.
But it's left behind widespread destruction to homes and infrastructure.
World Vision aid worker Mark Mitchell told Kate Hawkesby water sources are now extremely scarce.
"All of the bore holes and collection points of water have been contaminated by the floodwater, making drinking water very scarce."
Mitchell says rural communities have been particularly hit, with nealy 1 million hectares of crops destroyed or lost in central Mozambique as a result of widespread flooding and heavy winds in the wake of Idai.
"The floodwaters have literally washed houses way. All of the investments and crops people owned have been completely destroyed."