What is a starfish shelter?

Here are a few possibilities for what you might be thinking of:

* Starfish habitat: Starfish, or sea stars, live in various marine environments, including rocky shores, sandy bottoms, coral reefs, and deep sea. Their habitat depends on the species and their specific needs.

* A shelter built for starfish: It is unlikely that anyone would build a shelter specifically for starfish. They are naturally equipped to live in their own environment.

* A place where starfish are protected: Marine sanctuaries or protected areas often include regulations to safeguard starfish populations and their habitats.

If you can provide more context about what you are interested in, I can give you a more specific answer. For example, are you thinking of:

* A structure that starfish might live in?

* A place where starfish are being studied or conserved?

* A metaphorical "shelter" for starfish in a story or artwork?

Let me know, and I'll do my best to help!