Life's about balance, right? And what better balanced pairing than pie and yoga? The River is a beautiful power Vinyasa yoga studio in the Golden Triangle (near the Denver Art Museum, at 1212 Delaware) with a great community. Their flavor of First Friday festivities includes a heated yoga class with live DJ, plus snacks (read: pie), an art opening, Thai Massage... what more could you ask for?  Things kick off with the 5:30 yoga class.