Winter is the time when an estimated 20,000 gray whales swim through the waters off of the San Diego coast, from the Bering Sea to the shores of Baja, California. Lucky for you, captains steering San Diego Whale Watch guarantee you at least one whale sighting during their three-and-a-half-hour cruises. And that's not all. Chances are good you'll have the opportunity to see dolphins, sea lions, and migrating birds too. But keep an ear open while you look, it's easier to spot the marine life if you hear them first. Take the kids, celebrate an anniversary, or make it like 'dessert to your day' by hopping aboard for a sweet sunset-timed cruise. Some weekday specials are available on their site.