Year-round, Dumfries & Galloway:
A visual melting pot of swirling blues and greys, the mudflats of Caerlaverock provide a winter feast for birds like barnacle geese, bar-tailed godwit and knot. Arrive at dusk in early summer and listen to the eerie chorus of natterjack toads as they compete to attract a mate, noisily croaking for attention.