Whale Watching in San Diego is a phenomenal experience everyone should witness. San Diego Harbor Excursion offers whale watching tours twice a day during December- April. The Ocean Experts from the Birch Aquarium at Scripps will guide your unforgettable journey as we get you up close to whales, dolphins, sea lions and other marine life. We have a whale sighting guarantee. If you don’t see a whale, we invite you back for a free tour. Bring your camera and embark on an unforgettable journey as you live a whale tale!