It’s mid-morning on a sunny day and Yvette Yaa Konadu Tetteh’s arms and legs barely make a splash as she powers along the blue-green waters of the River Volta in Ghana. This is the last leg of a journey that has seen Tetteh cover 450km (280 miles) in 40 days to become the first person known to swim the length of the waterway.
It’s an epic mission but with a purpose: to find out whatis in the water and raise awareness of pollution in Ghana.
