Underwater photographer and adventurer Tanya Burnett-Palmer shares her favorite places to sightsee beneath the waves.
On-site secret: The more you can spin, flip, and dive like a dolphin, the more the dolphins will play with you.
Keep an eye out for: young dolphins, which may be quite small and have few or no spots. Adults are more speckled. When to go: year-round, but summer offers warm conditions and calmer seas; 800/348-4644 or biminiundersea.com.