What local dishes should I try in United Kingdom, and where should I look for them?

The dates are worth knowing because they tell you how old the protection is. Melton Mowbray Pork Pie was registered with the EU on 30 June 2009 and Cornish Pasty on 23 July 2011; both transferred to the British register, listed as "Foods: designated origin and geographical indication," at the end of 2020. Neither is a marketing slogan. Each is a legal name attached to a defined place of production, which makes them the two most reliable things to ask for by name in England.

Lamb and mutton are the other case where a designation points you somewhere specific, and the authority is an unlikely one. UNESCO's inscription of the English Lake District rests partly on agro-pastoral systems developed over more than 1,000 years, carried on by relatively independent farmers working common fell-grazing, with native breeds — the Herdwick among them — central to how the land is managed. The sheep are not incidental to the heritage; they are part of what was listed.

So the geography sorts itself. Pasties belong to Cornwall in the southwest. Pork pies belong to Melton Mowbray in Leicestershire, in the East Midlands. Herdwick meat belongs to Cumbria, in the northwest, where the breed is grazed on the fells rather than in enclosed pasture.

Herdwick flocks graze unfenced common land high on the fells, moving across ground too steep and too thin for crops, which is why the system depends on grazing rights rather than field boundaries. The stone walls that lace the lower valleys mark the limit of what can be enclosed at all.

A geographical indication protects a name and a place of production, not a recipe — so the registration tells you where a product has to come from, and nothing about how any individual bakery handles it. The practical consequence is that the label is a sourcing guarantee rather than a quality one, and the most reliable place to use it is close to the registered area: Cornwall for the pasty, Leicestershire for the pie.

• In Cornwall — Ask for a Cornish Pasty by its registered name; the PGI is the only thing distinguishing it from a pasty baked anywhere else.
• In Leicestershire — Melton Mowbray is the town the pie is named for, and the name has been registered with the EU since 30 June 2009.
• In Cumbria — Herdwick is the breed named in the Lake District's own World Heritage inscription, so the lamb and mutton are part of the protected landscape's economy.

The CDC lists the United Kingdom among destinations covered by its Global Polio notice, a Level 2 Practice Enhanced Precautions notice, so travelers should check their own vaccination status before departure. On the food side, the British and EU registers have run separately since 31 December 2020, which means a product can appear under one scheme's logo in Britain and another in the European Union — the name is protected in both places, but the mark on the packaging differs.

The question on seeing Britain beyond the obvious highlights covers the Lake District as a place to stay rather than pass through; the trip-planning answer handles entry authorisation and seasonal closures.