Season: 4 | Episode: 5 | Length: 60m

The teams navigate the full length of Thailand to reach the next checkpoint in Koh Phi Phi, an archipelago of islands between Phuket and the Straits of Malacca coast. With limited transport out of Mae Sariang, they have to get creative to keep up the pace before deciding whether to take the familiar backpacker route via Chiang Mai or the lesser travelled route along the Myanmar border.