Cape Burney? Ie greenough river mouth. Suggest you pm Austin who has kited those southern outer reefs more than anyone that I know. Definitely decent swell out there, but a long way out if you screw up. Have you guys tried Horrocks? Similar swell but a lot closer in. It's a lagoon with a nice reef that gets deeper towards the north.
needs a good swell to get going, 2m solid ground swell and 14 seconds, hells is good for 1.6m and up, get the conditions right and you'll know where the name comes from,