Marching across the country, The Gambia, Powell and Roberts said they encountered days with '40' C (104 F) temperatures with '40'km (24.86 mi) of walking. They've enjoyed a few stays overlooking the river, including one right on the river banks and another overlooking the river from an apartment with the London School of Hygiene and Tropical Medicine.

One of their last events on the Gambia was passing through "the lively town" of Bansang. It was there that Roberts commented how they had been granted great insight into the lives of the people and their culture, having been warmly invited into the homes of families throughout their entire journey.

A week later he reported "trekking through some incredible oasis type landscapes along the river's banks." They were beginning to reach the more estuarine extended mouth of the river.

Now, after 46 days and 1120km (696 mi), the duo has become the first known people to have walked the Gambia River from source to sea. They said they had to cross harsh landscapes, endure extreme temperatures, dehydration and hunger and walk "amongst the wildest of animals". Yet they seem to have been most impressed by the extreme hospitality and kindness of the "most humble" local people.