A plump alligator snack w/ duckweed dipping sauce.
We had a lab who looked just like that. He went for rocks in the creek behind our house. He would not chase a ball, but throw a rock in the water and he was gone! Not a sissy rock, but a baby boulder. He would not come up for air until he had the rock in his mouth.
He had an iron stomach. One day he passed three golf balls without any straining. He lived to be 16. He’s been gone 12 years and we still miss him. :-(
Now if he’s got his head under water barking at fish, *that* would be impressive! :)