Hi
Very big Kob caught from time to time and in Sep your chances for Garrick are still very good.
I love that place and get down there whenever possible, when it warms up there are huge smashes with flatfish mainly Diamonds and Sandies
There are always Zambezi's there so don't swim dawn or dusk or in dirty water. There are no shark nets and the beach is steep with very strong rips and no life guards (for swimming rather drive North to R Bay for a day)
I've also caught a lot of Grunter and Perch and a few Bartail Flatheads in the river
Enjoy the beauty of the place and take some time to view the mangroves and the many mudskippers and mangrove crabs going about their quite interesting and at times comical business on the mud flats.