A wide variety of birds and marine wildlife can be seen in Unalaska Bay. Tour by charter boat, or join a guided sea kayaking tour, where your guide can help you spot sea otters, Steller sea lions, and humpbacks.
Birders have the chance to view mega-flocks. Short-tailed shearwaters are common and have been documented traveling in groups of 1 million strong. Winter is a good time to spot emperor geese in Unalaska Bay, along with puffins, oystercatchers, guillemots, cormorants, mergansers and harlequin ducks.
Charters may also take you outside the Bay, in rougher waters near Chelan Bank and Cape Cheerful, where currents come through after high tide and bring food close to the surface. This attracts larger marine mammals such as humpback whales, orca, minke whales, and white-sided dolphins.