I'm always on the lookout for hydrologic oddities. Here's a great example from the BBC, with video
Waterfalls flow upwards in extreme wind
Winds battering southern Australia over the last 24 hours have been so strong that spray from waterfalls south of Sydney has billowed up into the air. Nearly a month's worth of rain has fallen on the city in 24 hours, and wind speeds have reached 120km/h (75mph). The extreme weather has meant a rough ride on the city's ferries, and a high surf warning has been issued with waves expected to reach 5m (16ft).