The 60-year-old actor and wife Susan Schneider currently live in Tiburon, a town on the outskirts of San Francisco and the `Happy Feet 2` star loves spending time outside of his home with his pet.
He said: "I`ve done the ranch thing, now I`m doing the water thing where I go kayaking and paddleboarding and take to the woods for hours on my bike. It`s my thinking time and very therapeutic.
"I also have a gay rescue pug called Leonard, who I take for walks because I am very secure in my sexuality. He has a boyfriend and they are planning to adopt a Siamese kitten together. We`re very modern."
Robin - who has sons Zachary, 28, and Cody, 19, and daughter Zelda, 22, from his previous marriages - longs to have grandchildren and says he plans to be a "sweet and forgetful" grandparent.
He said: "I plan on being a sweet, forgetful, `Oh God, where`s the baby? What have I done with the baby?` sort of grandfather.
"I love kids but they are a tough audience. When I used to read to Zelda in thrilling accents and act out the stories, she would sigh and tell me to give it a rest and read in a normal voice."