Many whale and dolphin species can be found in Moreton Bay including humpback whales, killer whales, southern right whales, sperm whales, melon-headed whales, blue whales, Bryde's whales, minke whales, common dolphins, spinner dolphins and Risso's dolphins. Under Australia's EPBC Act the southern right whale is listed as endangered and the humpback whale is listed as vulnerable. Commercial tour operators offer whale watching cruises between June and September each year. Most of larger cetaceans observed in the bay are humpbacks, and several smaller dolphins live or regularly visit the bay.