Meet your new Zen den.STRETCHSita Yoga Seattle OpensWhat: A hidden studio (on the second floor of a historical building) in Pioneer Square with old-growth beams, tall ceilings, and lots of natural light.Why: Dynamic vinyasa flow, small classes (drop-in, $15; five-session card, $50; two-month intro, $80), one-on-one attention, and a teacher who’s done stints in Curaçao, Peru, and Kuwait.When: Mon., Wed., Sat. & Sun., 4:30 & 6:30 p.m.Where: 89 Yesler Way, 2nd flr. (206-354-4497).Gear up before you go. We found the best accessories and clothing for yoginis.SEESol Hashemi: Rock Show What: A lighthearted look at manufactured items literally pinned against the natural world. For example, a camera flash is taped to one rock, while a bottle of Bud Light Lime is suspended between two boulders.Why: A miniature laser light show flashes elaborate red and green patterns against a glimmering, plastic-decorated stone. When: Thru May 28. Tues.-Sat., 11 a.m.-5 p.m.Where: James Harris Gallery, 312 Second Ave. S. (206-903-6220). Admission is free.Salt Horse: Titan ArumWhat: The up-and-coming dance troupe brings myth-inspired movement and dramatic costuming to the stage with a new performance.Why: Gorgeous frocks, strange ideas, and compelling moves paired with musicians like Stuart Dempster (and other well-known, local tunesters). When: Fri.-Sun. & May 19-21, 8:30 p.m. Where: Washington Hall, 153 14th Ave. (206-622-6952). Tickets ($15-$18) online at brownpapertickets.com.SWEATAxtion ClubWhat: All the fundamentals of boxing (hand wrapping, jump rope, conditioning workouts, and sparring) with women in mind.Why: Boxing and Muay Thai are ideal for strength training, increasing agility, improving muscle tone, and building confidence. When: Mon.-Fri., 6:30 a.m.-7:30 p.m.; Sat., 9:30 a.m.-1 p.m.; detailed schedule here.Where: 2602 Second Ave. (206-436-8589).