Jeremy Clarkson, James May and Richard Hammond are set to appear in the first of a series of specials called The Grand Tour Presents: Seamen.
The feature-length episode sees the captivating trio head off on an adventure across the waters, where they will captain three very different types of vessels.
Heading out on a 800km journey through Vietnam and Cambodia that begins Tonlé Sap Lake, the trio have to weave their way through a series of challenges and unexpected mishaps as they make their way to the Mekong Delta.
