Pembrokeshire is the end of the line – but what a finale. With dramatic cliffs, surf waves and some of the UK’s best beaches (ideal for a picnic), this is a county of the sea, serving up mackerel, sea bass, dressed crab and much more. At the Haverfordwest and Fishguard farmers’ markets, find fine products bearing the Pembrokeshire Produce Mark, which has more than 300 members; look for Pembrokeshire Earlies, the county’s famed potatoes, harvested from May to late July.