There are quite a lot of yoga classes in the Aberystwyth area.
I teach as part of a group of yoga teachers, Yoga i Bawb (Yoga for All). See their website for a full class list including Aberystwyth, Borth and Machynlleth.
For more information about my classes, click on the ‘my classes‘ tab under the Classes menu at the top of the page.
Aberystwyth University Sports Centre also offers yoga classes, and you do not have to be a member of the university to attend the classes.