Bubble-net feeding is a rare, unpredictable, and once-in-a-lifetime experience to witness. Humpback whales do have more common behaviors that can be seen in Kenai Fjords National Park that are just as amazing to see. On occasion, humpback whales will throw themselves out of the water, in a behavior called breaching. It’s not known exactly why humpback whales breach. During breeding season in Hawaii, males breach in competitive pods as they fight for the attention of a female. But in Alaska, breaching may be a form of communication, a way to stun fish, an exercise, or just pure fun. Other behaviors that can be seen include fluke diving, pectoral fin slapping, tail lobbing, and spouting. The best tip for whale watching is to keep your eyes on the water. Humpback whales typically hold their breath for 5-10 minutes when they are feeding, but you never know what’s going to happen when they reach the surface.