Sealion porpoise?

The whale safari area around Telegraph Cove on Vancouver Island contains many strange and interesting sights. Over the years I have watched many sea lions play with the humpback whales, twice saw cougars on the beach, black bears swimming between islands but this was the first for me, a stellar sealion pretending to be a dolphin. It did about fifteen of these “breeches or porpoises” behind the boat while we were following a pod of white side dolphins on the other side of the boat.