Dr. P's Dog Training site, a jewel of canine information, is provided by a psychology professor who specializes in animal learning and behavior and who describes himself as passionately interested in dog training.

CNN: Site-Seer: Fetching an obedient dog from the Web

The main event is the all-day Trainer for a Day program (13 and older), which lets guests don a wetsuit and work with a family of bottlenose dolphins alongside animal experts, learning about dolphin behavior and the Dolphin Habitat's research projects that aid in the survival of dolphins in the wild.

FORBES: Fun With Dolphins

Exactly why such stimulation works isn't known, experts say, but a similar procedure has been shown in animal studies to help improve learning and memory.

WSJ: A Gut Check for Many Ailments