Fodor's Expert Review Avacha Bay

Petropavlovsk is on this bay, one of the deepest in the world, and is the site of a submarine base—you'll sometimes see one of these elusive submarines from the shore or while cruising on the bay. On clear days, the bay offers views of spectacular rocky outcrops and its surrounding volcanoes. Starichkov Island, named for the ancient murrelet (a small bird in the auk family) is home to a multitude of the birds, plus puffins, cormorants, and many other seabirds.