Yoga in Goa is a great way for anyone wanting to step into the Indian spiritual pool. Its backwaters, ashrams, western European history and, let's face it , not so much in your face poverty eases the tender unacclimatised Westerner's sensitivities a deal.
Having said that the yoga experience in Goa is still sublime. Many European and US teachers choose Goa as a great holiday and retreat centre.
Heather Elton, a great Ashtanga yoga teacher holds part of her retreats program there. Check it out here.
Simon Low, a consummate yoga teacher and one that makes a joy out of the practice, holds his Yin Yang Yoga retreat there.