Relatively easy to reach from London (we traveled a big hour on the train to Ipswich and then hired a car), the area is small but diverse enough to keep you busy for 3 or 4 days without having to travel too much once there.
Staying at the lovely Ship at Dunwich (the Inn offers comfortable rooms, delicious crafts beers and very good gastropub food, including the best sticky toffee pudding I've eaten so far, and god knows my standards are high!), we discovered the area by foot, doing 1-day walks along the seaside and in the nearby countryside.
On our way there, we stopped at the Orford Ness national park, and paid a visit to the lovely Orford Castle.
We also spend half a day in Aldeburgh, famous for its seafood restaurants and one of the best Fish and Chips shops in the country according to Nigel Slater (facing an hour queuing in the street, we finally gave up).
The area offers seafood lovers wonders to enjoy indeed, from chippies and dressed crabs to hot-smoked salmon and lobsters that you can buy fresh and ready to eat directly from the fishing boats on the beach.
A great corner of England no-so far from busy London.