Approach to Crolls Gorge

What is the best approach from the Wellington River Bridge?
Follow the Wellington River Track and turn off at the 7th river crossing and walk up the River?
OR
Continue on to Shaws Gap, and then follow the spur down to the Wellington River ?
Follow the Wellington River Track and turn off at the 7th river crossing and walk up the River?
OR
Continue on to Shaws Gap, and then follow the spur down to the Wellington River ?