Source-to-sea diagram — Brief 3

The Landscape

The landscape is source to sea.

Everything that happens in the middle is felt at both ends.
200 kilometres from the Drakensberg Escarpment to two million people in Maputo.
Two rivers. One accountability.

The River

200 km

Source to confluence

2 million

People depending downstream

2 countries

South Africa · Mozambique

She is a partner, not a project.

The Sand and Sabie Rivers rise on the eastern slopes of the Drakensberg Escarpment — one of the most biodiverse mountain ranges in southern Africa. From there they run east into the Lowveld, gathering volume through ridges and valleys, joining each other in the middle catchment before passing through the Kruger National Park. Together they cross into Mozambique via the Inkomati system and reach the Indian Ocean near Maputo.

Two rivers. Hundreds of kilometres from source to sea. Crossing provincial boundaries, national borders, and the invisible lines between formal conservation and communal land.

Two million people in and around Maputo depend on what arrives at the end of that journey.

The river is not our project. The river is our partner. If you partner with the river, she flows life through everything downstream.

Where we work. Where the water goes.

The full catchment from source to sea. 200 kilometres across provincial, national, and customary boundaries.

Sabie and Sand River catchments from the Drakensberg Escarpment to Maputo

Source

Drakensberg Escarpment — 2,000mm annual rainfall. The water begins here.

Middle catchment

Bushbuckridge communities. This is where Save the Sand works. This is where the degradation is.

Kruger & Sabi Sand

20,000 km² of protected area, entirely dependent on what the catchment delivers upstream.

Maputo

End of the line. 2 million people. The accountability.

The Middle

The middle catchment is where the degradation is happening.

Population growth and subsistence agriculture without tree cover have destabilised soils across hundreds of thousands of hectares. Sand is moving into the river. The physics are not complicated: no roots, no soil stability. No soil stability, no water retention. No water retention — more floods in wet season, more droughts in dry, more sand downstream, more sediment in a river that is already carrying too much.

The Sand and Sabie Rivers' statutory Ecological Reserve — the minimum flow the law requires — is gone in parts of their middle reaches.

This is the problem Save the Sand was built to reverse. Not with a campaign. With a forty-year closed-loop economy that makes standing trees worth more to the household than cleared ground.

The Project Area

630,000 hectares. Three biomes. One of Africa's 162 Keystone Protected Areas.

The Greater Kruger ecosystem, which adjoins the project area, generates approximately ZAR 2.6 billion annually in tourism and conservation-related economic activity — around 10,000 jobs in guiding, hospitality, and conservation management. The health of the catchment is directly connected to the health of that economy.

The Sabie and Sand River catchments sit inside one of Africa's 162 Keystone Protected Areas — the sites identified by independent scientific analysis as making a disproportionately large contribution to continental biodiversity.

630,000 ha

Catchment

Project boundary across the Sabie and Sand River catchments. The landscape-scale unit of work.

Biomes

Savanna. Grassland. Forest. Ecological complexity that rewards tree diversity, not monoculture.

10 TAs

Traditional Authorities

Six chiefdoms with signed FPIC agreements. Customary land holding is the foundation, not a footnote.

The People

The land is held under customary law.

The catchment is home to Tsonga-speaking communities whose relationship with this landscape predates every map we have ever made of it. Ten Traditional Authorities hold the land under customary law.

Their endorsement is not a regulatory requirement. It is the load-bearing structure on which the project's permanence rests. Conservation that does not put the people of the land at the centre of its economics does not last forty years.

The Shangaan people have lived alongside the marula for generations. They know how it fruits, how it is harvested, what its oil does, what it means at a wedding.

They are not being taught to see the value of this tree. They are being given a mechanism to earn from the value they have always known.

The Ecology

Tree planting at scale does not just sequester carbon. It rebuilds the corridor the river depends on.

From cool escarpment forest through mixed savanna to hot thornveld adjacent to Kruger — the Lowveld biome contains remarkable ecological complexity. Multiple Critically Endangered and Endangered species. Indigenous grasses that stabilise soil between trees. Wildlife corridors connecting Sabi Sand to Kruger and beyond.

A catchment that holds water holds wildlife. A catchment that holds wildlife holds the economy of the reserves downstream. A catchment that holds its reserves holds the river all the way to Maputo.

The Framework

The river does not stop at a provincial boundary. Neither does the project's logic.

The SADC Transboundary Water Management Programme (BMZ/GIZ) provides the governance framework for scaling restoration across South Africa, Mozambique, and Eswatini — the broader Inkomati-Usuthu Catchment. The Limpopo Watercourse Commission and the Inkomati Maputo Watercourse Commission provide the institutional architecture for coordination across borders.

Save the Sand is positioned within this framework from inception. Not after the fact. Not as an add-on. From day one.

SADC / BMZ / GIZ

Transboundary Water Management Programme — the multilateral umbrella under which restoration is coordinated across Southern African riparian states.

Watercourse Commissions

Limpopo and Inkomati-Maputo — the bilateral institutions governing shared water across the border.