Learn Survival Welsh
Wikitravel users have collectively created a free Welsh phrasebook with the goal of making it possible for travelers to "get by" while traveling in areas where Welsh is spoken.
Wikitravel phrasebooks are available in many languages and each one varies in depth and detail. Most of the phrasebooks include a pronunciation guide, a general phrase list, information about dates and numbers, a color list, transportation-related phrases, vocabulary for shopping and phrases for eating and drinking. Some are even more in depth, and all are free!
About Welsh Language
From Wikitravel: Welsh (Welsh: Cymraeg) is a language spoken by around 21% of the population in Wales in addition to English (according to the 2001 Census) but probably more than 21% of the Welsh population can speak the Welsh Language now in 2010. It is also spoken by several thousand people in the Chubut province of Argentina, as well as by substantial numbers of people scattered around the world. All Welsh speakers old enough to attend school in Wales also speak English, while those in Argentina speak Spanish.