What’s normally a small stream flowing lazily through an otherwise dry river bed has swelled with the rains of the latest typhoon to a wide, swift flowing river. Just a few meters from where I’m standing there’s a kind of wier, consisting of a series of large concrete blocks, stretching across the river. Normally you’d be able to get across to the other side by jumping from block to block but today that’s not possible. The entire wier has been turned into a waterfall, the concrete blocks engulfed in muddy brown water. Just below it, there’s a massive standing wave, the water curling in on itself as it flows across the stones and concrete. A loud booming fills the air of this otherwise peaceful river valley. That even a relatively small typhoon can transform a river this much is a stark reminder of the truly awesome power of nature.