It was a pleasant day. The sun shone bright. The sky hung cloudless above us. But as we walked along the Brandywine Creek State Park, Delaware, the black tarred roads disappeared under a layer of cracked ice. With walking sticks, we found our balance, moved thorny shrubs, and poked on frozen mire that lay like lumps of dark chocolate. The creek followed us, often changing its appearance from a crease-less sheet of glass to a colony of ice blocks. Shoes muddy, foreheads sweaty and jackets unzipped, we wrapped up our little three-mile adventure and called it a (pleasant) day!