Water from high waves are impacting on parts of Wharf Rd, Surfside, Beach Rd at Corrigans Beach and Casey’s Beach.

The SES is urging people to stay away from the Promenade area in the central business district.

"Sightseeing is extremely dangerous," a spokesperson said. 

Motorists are also being urged to take extra care, with South Coast police receiving reports of rocks and debris being washed onto some roads from the king tide.

There are also early reports of a landslip on the Kings Highway, east of Pooh Bear Corner. Eastbound traffic is affected and motorists are being advised to exercise caution. RMS is currently carrying out slope stabilisation work in the area and the road was scheduled for closure from early tomorrow until 5pm on Thursday.

Just over 12 months ago high swells ripped-up granite slabs along the Batemans Bay promenade, a popular tourist walk.

Meanwhile, a minor flood warning has been issued for the Moruya River at Wamban.

Up to 144mm of rain has fallen during the past 30 hours with heavy rain forecast by the Bureau of Meteorology for the next 12 to 24 hours. This anticipated rain is expected to cause minor flooding at Wamban.

Authorities say at this stage it is not possible to predict a flood peak due to uncertainty around how much more rain will fall.