The Harwich Harbour Ferry starts running from the 1 April (see https://www.harwichharbourferry.com/timetables) and a trip on the ferry is thoroughly recommended. You can get the ferry from Landguard point in Felixstowe or from Shotley Point (although the leg from Landguard to Harwich is more interesting, and you have to board the ferry via a gangplank from the beach!). There’s plenty to browse around in Harwich – lunch at the Alma Inn (https://www.almaharwich.co.uk/) is recommended, or have a look around Lightvessel LV18 (http://lv18.org) moored at Harwich quay .