To provide safe outdoor experiences for an indoor cat, create a secure, enclosed space like a 'catio' or use a harness and leash for supervised walks. Both options allow your cat to enjoy fresh air and stimulation without exposure to dangers like cars, predators, or getting lost. Ensure the area is free of toxic plants and harmful objects. Providing your cat with window views from inside can also offer a safe way to observe the outdoors, keeping them mentally stimulated and content while remaining protected.