Johannesburg - Three swimmers in Kalk Bay were rescued after parts of Cape Town flooded, when eight-metre-high waves hit the coast, the municipality said on Friday."Coastal towns and resorts along the Atlantic and False Bay coastline were left swamped after tidal surge during the early hours of this morning," acting head of the City of Cape Town's disaster operations centre, Wilfred Solomons-Johannes, said in a statement. He said the three bathers were rescued by lifeguards after being swept off the seawall in the Kalk Bay harbour."Eight metre wave heights occurred during early hours of the morning".Flood damage to roads, campsites and houses were also reported in various areas, with holidaymakers at some campsites being evacuated to higher ground."Between 05:00 and 06:00... tidal waters flooded tent and caravan camping sites at Ganzekraal on the West Coast, Silwerstroomstrand Beach near Mamre and Atlantis as well as the coastline between Melkbosstrand until Milnerton Lagoon on the Atlantic.Chalets at the Kleinbaai Resort near Melkbosstrand were submerged underwater on Friday morning and recreational areas had also been engulfed in water.Various roads along the False Bay coastline were closed for mop-up operations."The subway at Dalebrook Tidal Pool was completely flooded and benches have washed into the pool."Solomons-Johannes said disaster teams were on high alert for 18:00 on Friday evening when another high tide was expected."Although not anticipated to cause problems, there is still the potential for flooding of coastal areas."