Well, Rebecca Ritzel at WaPo has an idea:
the problem with playing polo in Wales is that if you whack the ball once, it rolls straight down a mountain and into a hedgerow, never to be seen again. Except maybe by a sheep….
Here's the first thing you need to know about riding holidays in Wales: They are not, like polo, just for the rich and famous. Once you are in the United Kingdom, staying at a horse farm is an affordable way to get out and see the countryside.
A weekend of riding that includes meals and lodging == thirty dozen clams. What better way to lament our economically downcast state than to pitch everything aside and ride wildly over the rolling green?