I want to have a list of breeds of large dogs, ones that would be great fun at a beach?

Any type of retriever normally loves the water. Although let me be the first to say, I had a chocolate lab, who was terrified of water, but my golden loved the water. He would swim out further than I would to go fetch something. The difference between the two is age. My golden was 6 months and my lab was 3 years. I think if you introduce a younger carefree puppy to the ocean you'll have better results. But I would definitely say some sort of retriever. Good luck:)