Saturday was filled with family fun for Kate Hudson and her son Ryder. They met up with Goldie Hawn and Kurt Russell in Santa Monica, where they rode bikes near the beach and enjoyed the sunny LA weather. Kate's fiancé Matthew Bellamy didn't join them for the afternoon outing, but he did spend time with Kate and Goldie last week. The trio was together in London to celebrate the launch of Goldie's Hawn Foundation, which develops programs for children. Goldie kept the party going into the early morning, when she was seen being helped into the back of a car. Kate fit in a couple's walk with Matt on Friday before heading back to the West Coast with her mom.