If you're in Lowestoft, don't miss out on getting some kippers from The Old Smokehouse.... Probably the best I've ever had: http://the-old-smoke-house.edan.io/While in Lowestoft you can stand on the most easterly point in the Uk, also a very nice little marine museum if that rocks your boat, also a restored herring trawler in the harbour to nosey around.
Bawdsey on the coast is a visit if your into the development of radar as is Shingle street
Very old school set up. Very tasty smoked fish.