Unfortunately I don't. Hmm Well did some preliminary stuff. He is very inconsistent about picking an object up and bringing it back, or even picking it up for that matter. Sometimes, if it is an object he likes, he will pick it up and than run around crazily with it. I have done some early hose stuff with positive reinforcement, will try to get him out to a lake or maybe calm tide.
I sure hope I can awaken his retrieving instinct somehow!
We adopted Koda at 1yo and he was in this same situation you describe. He wasn't fond of the water at first - but within 4 or 5 trips to the lake he was as much of a water dog as our other Golden. As for retrieving... I hope you have better luck with this than we have! Koda will be 3 the first week of January and JUST LAST WEEK he retrieved a tennis ball. It took us almost 2 years! He likes to chase our other golden during fetch but he never tried to get the ball. All of a sudden last week he decided he wanted to fetch as well! I was so excited for him! He would much rather play tug though!!!