For oneness with nature, elegantly renovated cottages on Montague Island offer a uniquely beautiful retreat. Cottages sleep up to eight or 12. Rooms are true to the buildings' 19th-century history, with fireplaces and polished wooden floors. Rates include boat transport; bring all food supplies to make use of the barbecues and full kitchen (the tap water's drinkable). Book ahead. Two-night minimum.
Guests are assured that the resident ghost has been quiet for some time.
There's solar-generated power and there are sometimes conservation projects on the island that you can volunteer for.