Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Visit the hotel Great Island Inn, which is in the state New Hampshire (NH), city New Castle. Our hotel can be found at 3 Walbach St, New Castle, NH 03854. Great deals on best and cheap hotels. Your comments* (not for publishing) * — Required information Great Island Inn/3 Walbach St - New Castle - New Hampshire (NH) ← View details 3 Walbach St, New Castle, NH 03854, New Castle, New Hampshire (NH) Not available