When a pod of whales tucked into a feeding frenzy on the NSW south coast there was plenty on the menu - even enough for a surprise guest.

Amid the pod of humpback whales in waters out of Eden, an opportunistic fur seal wasted no time in finding the best seat for the fish feast.

The odd pairing was captured by photographer Robyn Malcolm on a recent whale watching trip out of Eden.

"We'd seen some amazing whales coming out of the water, everything was happening so quickly. And it was when I went back through the photos that I realised I had actually captured the seal on top of the whale."