Hi Roisin,
Yes, the Monkey Bar is the main night in Swansea, I’ve have been there for the last two weeks and had a good time.
Details of all the classes in Swansea can be found on here www.salsacity.com/forum/forum2-topic1432-page3 on message 37.
I haven’t been to any of the other nights in Swansea, but as far as know the information is correct and up to date. However it’s probably best if you try out the Monkey Bar first, and ask some of the regular Swansea crowd about the other Salsa nights in Swansea.
Good luck, have fun!