Category Archives: Port Elizabeth

Diversnight at Hobie Beach – 3 Nov

The 7th Annual Diversnight took place tonight at 20:11, at Hobie Beach with Prodive, attempting to reach a new world record of night scuba divers. Diversnight took place in numerous parts of the world, as part of a tradition started in Norway in 2005; About 3000 scuba night divers are expected to take part in this reasonnably new diving event.

The weather in PE could not have been better, with a light breeze, flat sea and a reasonnably good vis!

Gale force winds in the bay are common in Sept/Oct

The months of September and October in the Bay are usually windy with some gale force wind storms bringing into the Bay high seas and spectacular sights.  On Sept 1, 2008, gale force winds combined with high tides and the solstice caused swells of between seven to 12 metres into the bay….causing damages to the shore and infrastructures. 

Almost a year later, on Oct 27, 2009, winds as high as 150km/hour hit the bay in the night, causing major damages to the Yacht Club marina and along the shore.

Did you know?: The Dolos

The “dolos” is an unusually-shaped concrete block of up to 30 tons, invented in East London, South Africa, in 1963, and found in millions around the world where protection from the effects of rough seas, current and tides is required, i.e. at harbour walls, breakwaters, shore earthworks. So, to protect a kilometer of coastline, about 10 000 dolosse (plural of “dolos”) are required.

The name “dolos” finds its origin in the Afrikaans word ‘dobbel osse’ (knucklebone), which is believed to refer to ox knuckle-joint bones used either in divination practices by sangomas, or to the knuckle bones game used by African children many years ago.

Dolosse can be found in the harbours of Durban, Port Elizabeth, St Francis, and many others outside South Africa such as on the Humboldt, the breakwaters of California, New Jersey, Hawaii, the High Island Reservoir East Dam in Hong Kong etc. The biggest dolosse can be found at the Ngqura deep water harbour of Port Elizabeth, where 26500 dolosse weighing each 30 tons make the upper layer of the 2.5km-long breakwater.