Back in August, we followed author and artist Allen Crawford (a.k.a. Lord Whimsy) as he undertook his Hidden River Expedition, a 40-mile, three-day kayak trip from Mt. Holly, NJ, to Bartram’s Garden in Philadelphia. Crawford blogged, photographed and recorded audio from his trip along the Rancocas, Delaware and Schuylkill rivers; join him on Sunday, October 30 from 1:00-3:00 p.m. at Bartram’s Garden for a lecture on his “re-exploration” of urban waterways and the history of Philadelphia’s rivers. More info here.