As the birthplace of yoga, India is an ideal location to participate in a yoga teacher training or yoga retreat. You can find basic and advanced training in all eight limbs of yoga, including asana, pranayama, and philosophy. (India also has many institutions where foreigners can pursue studies in topics like astrology and Sanskrit.)
India has been an important destination for pilgrims for millennia. The heartbeat of India gave rise to not just yoga, but also meditation, tantric traditions, and basically the entire New Age spiritual culture that we have today in the West. So whether you are hoping to practice meditation alone in a remote cave in the Himalaya (if so, good luck with that!) or attend a detox cleanse on the beach in Goa, you will find out why the extraordinary qualities of India have been good for spiritual practice for thousands of years.