A rare Florida cold snap left hundreds of juvenile sea turtles cold-stunned in shallow lagoons, prompting a rapid rescue and rehabilitation response that offers a rare look inside the delicate, hands-

Learn more about how one rescue diver–turned-conservationist is working to bring a thriving sea otter population back to the Oregon coast.

We asked, and our readers told us: These three locations earned top marks for their healthy marine life, something every diver wants when they splash down.