The tub they eventually got into was a large, round, wooden thing; large enough for easily a dozen ponies if they didn't mind being slightly squooshed together. At the moment, though, the only ponies present were Erin and Twilight, with a possibly sleeping Spike idly floating by on his back. Erin sat down on her haunches and leaned back against the tub wall, enjoying the warm water and the pleasant scent of the herbs. 