It's not always guaranteed that you'll see a whale on a whale watch, as the whale's movements are dictated by their migration pattern. To give you a better chance of spotting a whale, go whale watching in your destination during peak whale season. Whales have several different behaviors that they may exhibit during a whale watch, including blows, when they expel a spray of water through their blowhole, and breaches when they leap out of the water. Breaching is also sometimes referred to as cresting.