What to do near Sizewell
RSPB Minsmere, one of the top three reserves in the UK. Allow a full day. Visitor centre, café, hides, family trails.
Dunwich Heath (National Trust), heathland walks, the famous café at the coastguard cottages, coastal views.
Eel's Foot, Eastbridge, pub on the edge of Minsmere. Folk nights, dogs welcome, walk-back-to-the-cottage perfect.
Sizewell beach itself, long, flat, quiet. Avoid the very northern section near the power station fence.

