San Diego is among the world's top destinations for viewing marine wildlife. During whale watching season, mid-December through April, more than 20,000 gray whales migrate along our coast. For the thrill of a lifetime, cruise alongside these magnificent whales in their natural environment guided by San Diego's most experienced whale watching fleet. Flagship's history traces back to the world's first whale watching cruise?right here in San Diego in 1955. Learn about the ocean ecosystem and enjoy live commentary on the sights and sea creatures you may encounter: gray whales, fin whales, humpbacks, minke whales, dolphins, sea lions and more. Your ticket sales help support Ocean Connectors, providing San Diego youth with access to hands-on environmental education. Our tours strictly adhere to NOAA's Marine Life Viewing Guidelines, maintaining a respectful 100-yard distance from large whales and limiting observation times to 30 minutes or less. This ensures a safe and stress-free experience. Tours depart twice daily at 9:30am & 1:30pm aboard the Marietta, our comfortable, two-story whale watching yacht, featuring 360-degree views from the main level and upper sundeck, and multiple restrooms.