Cape Town - News24 User Jason Weeks sent us this video of strange waves moving up the Goukou river in Stilbaai on December 24.
"Every sevenm minutes a small wave of water flows up the river against the outgoing tide and against the wind," said Weeks.
"The last time we saw this was when the quake and tsunami hit on the 26th of December a few years ago."
"This video was taken 5km up the river, from the Goukou river mouth, so that gives you an idea of the force behind the waves."
Can you help us explain these strange waves? Leave your thoughts in comment box below.
- News24
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