Dragoncrest Cliffs Whalewatcher

She nodded. When they exhaled, a plume of air and moisture would rise above the surface in a pattern which made it possible even from a distance for their species to be differentiated. She was about to answer him when she saw what she was hoping to see. 

The whales she'd seen diving had gone down into the depths, only to begin propelling themselves toward the surface with sweeps of their huge tails, still out of sight in the inky darkness of the water. When it split the surface its momentum carried it up so that it rose into the air, almost high enough for its tail to break the surface. It seemed to hover there for a moment as the water spilled down its smoothe skin, before it teetered to the aide and splashed back into the water with a sound that cut over the waves. 

Chacal chuckled softly. Yes, an' sometimes dey leap, just for fun.