Here's a sequence view of Safetybay from 2002 to around 2015
When I was a kid (many many many moons ago the sandbar wasn't there and we'd snorkel from the cray fishers jetty down to the boat ramp.
If you look at the first image you can just see the remains of the old jetty and the end of the last track to the beach on the left, it still there just buried.
When I stared in 2001 the sand bar was pretty much perpendicular with the shore. Sooner or later it will join back up with the shore and the natural flow of sand down the beach.