The Rakaia Gorge splits the Canterbury region in two. There is a wide, blue river that winds from the white snow-capped mountains. January 5, 2016 700 × 467 The Rakaia Gorge splits the Canterbury region in two. There is a wide, blue river that winds from the white snow-capped mountains. The Rakaia Gorge splits the Canterbury region in two. There is a wide, blue river that winds from the white snow-capped mountains.