A Goldendoodle is a Golden Retriever and Poodle cross rather than a standardized breed, so adult size runs from about 15 pounds to well over 80, and coats range from straight to tightly curled. That variety means doodles can look very different from one another, and a dog's actual size and coat matter more than the label.
Many inherit the Golden's friendliness and the Poodle's quick mind, and they enjoy training and company. They also need daily exercise and steady coat care: wavy and curly coats mat easily and usually need professional grooming every six to eight weeks. Shedding varies, and no Goldendoodle is guaranteed to be hypoallergenic. In a beach city, expect sand and salt to end up in that coat.