San Juan Island is considered one of the best place to view wild orca whales because the surrounding nutrient rich water of the Salish Sea. These nutrients draw all types of marine animals, including large marine mammals like orcas. Take this Whale watching tour and see orca whales, during peak season we have a 90-95% success rate of spotting orca, minke, humpback and gray whales. What is the best time to see orca whales? Anytime. They are out and about all day. Aside from whales, many other marine mammals like harbor seals and stellar sea lions, as well as various sea birds, bald eagles and some unique terrestrial mammals are all common sightings! You'll definitely come back with memories to last a lifetime! Enjoy the beauty of San Juan Island on an exclusive Whale Watch Cruise from Friday Harbor. Sail aboard the fast, new 55 foot MV Sea Lion (with windowed, heated cabin, which seats up to 24 guests). 40 or fewer guest aboard this comfortable boat with walk around deck.