Forget canoeing. This is the way to paddle. At the annual Truro Center for the Arts at Castle Hill auction, bid on paintings, sculpture, trips, or the chance to have an established author critique your stab at the great American novel. Preview the offerings (like this 1976 Joel Meyerowitz photograph, signed by the artist) as you stroll, martini in hand, along stone-and-shard paths connecting the art school’s studios, then take a seat under the tent. The date is Aug. 9; admission is $40, which includes hors d’oeuvres. 10 Meetinghouse Rd., Truro, 508-349-7511.

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