A peaceful village on Mexico's Caribbean coastline, Puerto Morelos is the antidote to glitzy Yucatan hot spots like Cancun and Playa del Carmen. Government eco-reserve designations protect the vibrant coral reef and lush mangroves—and the village itself—from rampant overdevelopment. It's all about the outdoors in this Riviera Maya town, from thrilling jungle and diving adventures to serene bike rides and massages on the beach.