A harbor cruise tour takes you away from the hustle and bustle, and shows how closely the city is tied to its maritime heritage. It's a great way to rest your feet and get some great city views with ships docked beneath San Diego's modern skyline, or watch sea lions lounging on a buoy. One- and two-hour San Diego harbor cruises leave from the waterfront near the cruise ship terminal on Harbor Blvd. One-hour tours either go out toward Point Loma or travels past the Coronado Bridge, the Navy Seals Training Base and ships of the Pacific Fleet. It's hard to say which is more interesting, and with the price of a two-hour tour only a bit more than a one-hour one, and we recommend the longer tour if you have time. If you're in San Diego on Sunday, opt for a brunch cruise. Take warm clothing along on your harbor cruise. It's always colder on the water.  Don't forget sunscreen and water, and something to tether your hat.