Yes, there are restrooms and drinking fountains on Goat Island.

Right near the bridge from the mainland (the one you walk over from the parking lot), you’ll find a visitor center building with public restrooms and water fountains. They’re clean enough and open during park hours.

Walk a little further toward the Three Sisters Islands and you’ll hit another set of restrooms near the Terrapin Point overlook. Same deal – basic but functional.

Drinking fountains are scattered along the main paths. They work fine, though in peak summer they can be lukewarm. Bring a bottle and refill.

Just don’t expect luxury. This is a state park, not a hotel.