According to Jones, Swartz and Leatherwood in "The Gray Whale" bubble blasts by gray whales produce a distinct underwater sound, part of the gray whale phonation repertoire, and in Laguna San Ignacio this class of sound can be transmitted underwater at least 2.5 kilometers.
Eschrichtius robustus bubble blast & Macrocystis 2015 04-28 SB Coast-149
From 2015 04-28 SB Coast
Gray whales in the surf - a bubble blast plus, if you look close enough, you will see a large female just under the surface sideways in the wave. A juvenile is inside the wave towards the beach.
Eschrichtius robustus cow-calf in wave & bubble blast Ellwood 2015 04-23 SB Coast-028
From 2015 04-23 SB Coast
In the aftermath of a huge bubble blast two humpback whales rise up to spout. (The smaller whale has only exposed the tip of its rostrum on the right of the mother whale)
Megaptera novaeangliae bubble blast 2014 09-10 SB Channel-c-007
A curious image of some real biological interest: A Humpback Whale (Megaptera novaeangliae) lets out a big blast of air bubbles from its blowhole as it rises up from below this patch of kril (Thysanoessa spinifera). You can see the krill jumping out of the water.