Swimming
The swim from Tarifa to Punta Cires in Morocco was first achieved in 1928, and since then only 185 people have repeated the feat. It's a very challenging and exposed swim due to the fast moving currents, and the huge amount of shipping that passes through the Straits.
David Walliams, who's obviously a glutton for punishment, will be joining James on the 12 mile (20km) swim between Tarifa and Punta Cires. It should take them between four and six hours depending on sea conditions and the movement of the tides.
If weather conditions are good and everything goes to plan, James should set foot on African soil less than a week after leaving Dover in a rowing boat!
