The current regular weekly tango schedule looks like this:

Thursdays @ Chelsea Sports Centre, 7.30-8.30pm – £10 (Beginners welcome)

Fridays @ Dance Attic, 7.30-8.30pm – £6 (Intermediate +)

Chelsea Sports Centre, Chelsea Manor Street, SW3 5PL – nearest tubes Sloane Square or South Kensington

Dance Attic, 368 North End Rd, SW6 1LY – nearest tube Fulham Broadway