Looks like no one knows the area of Uvongo. Or at least no one that has read your post.
Are you having any luck? Looks like a lot of beach areas. So maybe some pilchards or sardines cast into the waves might be OK. I see there are some creeks and inlets in the area, so maybe the good old prawn on a basic bream rig might be good.
Let us know how you go
itsaboat mate...Life is just a boat and then ya marry one !