Use "under canvas" in a sentence

1. With breathtaking views of the Maine coastline and Acadia National Park, Under Canvas Acadia is the perfect base camp for an ideal New England getaway

2. “After a period in this prison, I was transferred to the army camp then under canvas on the Exhibition Grounds and I thus had a change both of scenery and of action.

3. She was somewhat shallow of hull and flat in the floor, to give her a light draught of water, but to compensate for this she was extraordinarily "Beamy," which had the twofold effect of imparting great stiffness under canvas, and affording fine roomy decks.A Middy of the King A Romance of the Old British Navy