Dance
Salsa
There are various styles of Salsa and different classes teaching them and social dances centred around them.
Red Hat
Red Hat Salsa run classes at different levels followed by social dancing upstairs at RISC, weekly on Tuesdays and monthly on Saturdays They say you can get your first and 4th lesson half price and 10th lesson free - these aren't advertised at the venue.
Cuban style / La Rueda
La Rueda / Rueda de Casino is danced in pairs in a circle. Moves are called out: they have names in Spanish (although the names don't necessarily have obvious meanings, e.g. dile que no means tell her "no"). Many of the moves involve changing partners around the circle. This video shows examples.
Afrodesia
Afrodesia Salsa run lessons at different levels followed by social dancing at The Butler pub in Chatham St on Wednesday evenings.
Rising Sun Arts Centre
La Rueda at the Rising Sun run lessons at different levels on alternate Wednesday evenings at the Rising Sun Arts Centre. The group's Facebook page shows dates.