Definitions for "Spyhopping"
behaviour in which the whale raises its head vertically out of the water, at least above eye level, likely to look at its surroundings
Raising the head vertically out of the water, possibly to view surroundings.
describes an animal putting only its head above the water (like a periscope) and turning in circles, presumably to survey the surface. Common with Orcas and Globicephelas.