Four researchers are advocating for renewed artificial manipulation of the Mfolozi River’s estuary to prevent Lake St Lucia, South Africa’s largest estuary, from becoming a freshwater lake or swamp. Their proposal includes controlled breaching of the estuary and dredging operations, actions previously employed but later halted. The scientists argue these interventions are necessary to delay what they deem a “premature” ecological shift. Concerns exist that without these measures, the estuary’s unique biodiversity and ecosystem services will be lost. Critics previously voiced opposition to such artificial interventions, citing potential negative consequences for the natural environment. The proposal has reignited debate over the best approach to managing the lake’s future amid changing environmental conditions and historical human impact. The researchers believe proactive management is crucial to preserving the estuary’s health.