Probably an Eagle owl then, most likely an escape from a collection as they really don't like being too close to people. Dave and I always stayed in place Cromer on our Norfolk holidasys the Hotel ' de Paris by the pier, used to watch the turnstones running around on the prom, they would go to where folk were fishing and steal bait from their boxes. The only other place I know where that happens is Southend on Sea.
Then straight after brekkie walk to the bus station and get the coasthopper to somewhere like Titchwell or Cley or Wells next the sea. Always tried to fit in a couple of boat trips, plus a beer trip to Norwich. We did the Heritage rail trip from Sheringham to Holt, that was good was lots of partridges and pheasant.