We'll have to swing north through heavy jungle.
2 seconds sound clip from the The Bridge on the River Kwai movie soundboard.
You can hear this line at 01:40:07.844 in the Blu-ray version of the movie.
Quote context
[...]
(BOTH LAUGHING) Oh, very good! With or without!
- Yai says we'll never reach the Kwai by the route you took.
- There are too many Japanese patrols.
- We'll have to swing north through heavy jungle.
- Who's going to lead the way?
- He hates the Japanese. They've taken all his men for railroad work.
- Which means we shall have to use women bearers.
- Well, they're very capable, I'm told.
- He says it's dangerous to spend the night in the village.
[...]