Community of Summerville, NS Photoview from highway - The Avon Emporium and Shipwright Inn. Summerville is a community on the banks of the Nova Scotia, Avon River. Founded in 1784. The Glooscap Trail Scenic Trailway The Nova Scotia, Glooscap Trail follows the spectacular shore of the Bay of Fundy, Minas Basin, NS, where the majestic power of the world’s highest tides has shaped a landscape of unforgettable splendour where nutrient-rich waters that make it one of North America’s great natural treasures.