Breath-taking moment humpback whale breaches almost on top of a tourist boat in Alaska… leaving spectators drenched 

• Humpback whale surprised a group of tourists on a boat trip in Gustavus, Alaska 
• Whale leaped out of the water and did acrobatic twirl before crashing into water
• Amazed whale-watchers were left soaked with water after the incredible sight 

This is the incredible moment a humpback whale breaches the water next to a shocked group of tourists on a boat.

Footage captured the breath-taking scene on a whale-watching trip in Pleasant Island, Gustavus, Alaska. 

The video shows the peaceful ocean in Glacier Bay, off the Gulf of Alaska, as a whale can be seen spurting water in the distance.

But suddenly a different hump back whale leaps out of the water right next to the boat causing people to gasp in shock.

The whale breaches, lifts it's whole body into the air and twirls round before crashing back into the water.

 A huge wave of ocean water sprays the surprised tourists as the whale submerges itself after the incredible leap.     

Shocked tourists in the boat can be seen soaking wet as the camera turns back on them after the incredible sight.

The boat can be seen rocking as people scream with delight over the once-in-a-lifetime experience they have just witnessed. 

The TAZ boat trip in Alaska offers tourists the chance to see humpback whales in their natural feeding grounds.      

The humpback whale is known for it's eerie song that can last for up to 20 minutes long, is repeated for hours at a time and changes gradually over the years.  

This unique song as well as acrobatic displays of groups of males around a female, which include breaching and tail slapping, it thought to play an important role in mating.

Alaska is home to many marine animals including Minke whales, Orcas, Stellar sea lions, Sea otters, Dall porpoises, and Harbor porpoises.