Dingle has barely half-a-dozen streets and 1,500 Citizens - yet it is arguably the fun capital of the Western World.   Other towns and cities may rival it for eating and drinking, but which of those can boast as well, the music, the banter, the sea, the sand, the scenery, a certain famous dolphin, and the easy warmth of the welcome.   Tens of thousands make the annual pilgrimage here, their mission to learn from the natives how to enjoy themselves.   Most, or all of them, succeed - - the local strain of craic is highly infectious!   But Dingle is much more than just merrymaking.   Quieter pleasures include a number of interesting walks, a great many historical remains, especially Ogham Stones, and the gentle call of the ambient hills.   Nor is Dingle devoid of gravitas.   This was, and is a serious market town, built upon fishing and farming.