Then, in 1996, an Australian ecotourist company informed University of California, Santa Cruz, marine biologist Daniel Costa that a group of dwarf minkes regularly
congregates around its boat, the Undersea Explorer, coming within meters of snorkelers.
The sheer diversity of mammals that
congregate around the river will impress those who approach by four wheels, but travellers keen on getting even closer to the wildlife should take a
boat up the river.