How do you build a habitat for a friendly river otter?

To build a habitat for a friendly river otter, create a spacious area with both land and water features, ensuring a shallow pond or stream for swimming and diving. Incorporate natural elements like rocks, logs, and vegetation for climbing, playing, and hiding. Provide shaded areas for resting and ensure the habitat is safe from predators. Lastly, maintain clean water and a varied diet of fish, crustaceans, and fruits to support their nutritional needs.