Hornblower Cruises in San Diego can handle everything from weddings to birthday parties to just a nice evening for two out on the San Diego Bay. Dinner cruises depart nightly and last for about 3 hours. These cruises leave from San Diego Grape Street pier at 6:30pm, which is within walking distance of a number of downtown hotels. Not to worry if you have the kids in tow, there's a menu for them, too. Hornblower has a fleet of seven ships. The dinner cruise boat, Lord Hornblower, is inspired by designs of historic steamships. You can also book wildlife excursions such as whale watching and more.