Howdy,
I have been surfing locally for over 30yrs and have never known the amount of sightings and beach closures before...
Not sure if it's more sharks around, or just more being reported since the recent attacks and increased patrols...
I was riding along the coast this morning when they closed Trigg & Scarborough for the second time around 11:30am... as my Mrs is working the early tomorrow I will be up at 5:00am and was thinking of a sneaky surf before the (teenage) kids wake up... not sure if I will now. One shark is OK, but when 4-5 3m and bigger sharks are reported close in... Hmmm - makes you think twice (esp. when the surf is not that great).
Last time I went down south I didn't venture out... it was only a few days after the guy got taken at Bunkers and the dept of conservation had a shark warning out due to the whale carcass at Torpedo rocks...

Sorry - I probably haven't helped you any...