When you walk through the maze of narrow streets in Palma keep your eyes open for its many hidden gems. A proud patio, maybe, or a colorful blooming backyard behind a plain facade. Like the splendid garden of Temple Natura. The popular vegan restaurant in Sa Calatrava is a true urban oasis.  A  shady retreat where you enjoy your meal among lush flowers under a canopy of leaves. The mingle-mangle of comfortable vintage furniture makes you feel like a guest at a private home rather than at a…