I have been practicing yoga for 25 years and have taken classes in carpeted gyms, in converted classrooms with hard concrete floors and in a lovely log building above a high-mountain Colorado river. But my most favorite place is where I take my yoga classes now, at Zen Yoga in the heart of San Juan del Sur. It’s open-air. So you feel the breezes. And the heat when there is no breeze. You hear the birds. The rooster. The children at recess in the school next door. The school bell calling them back to class. The motorcycles. The door-to-door vendor …