 Alonzo Ketcham Parker, a nineteenth-century American traveler, called visiting the Sea of Galilee "a 'fifth gospel' which one read devoutly, his heart overflowing with quiet joy".In April 2011, Israel unveiled a hiking trail in Galilee for Christian pilgrims, called the "Jesus Trail".It includes a network of footpaths, roads and bicycle paths linking sites central to the lives of Jesus and his disciples.