Chef Michael Scelfo of Alden & Harlow welcomes Waypoint, his second Cambridge restaurant. Located at the gateway of Harvard Square at 1030 Massachusetts Avenue, “waypoint” often means a plot point on a map. For Chef Scelfo, it signals a natural next step along his culinary journey. The menu at Waypoint reflects his forward-thinking approach to coastally-inspired fare, combining approachable ideas and ingredients with elements that are unexpected.