Bielmann wrote next to the footage: "We caught this guy ridin dirty a few weeks back in Cabo! #biggie (sic)."
The post has since attracted over 23,000 likes and 600,000 views.
In the fun clip, the large beast rests comfortably on the back of a medium-sized boat while a family looks on in disbelief.
While Wiz Khalifa's Black and Yellow plays in the background, the seal stares longingly at a huge fish one of the boat riders has in his hand.
Brent attempts to make mocking seal noises at the mammal to get its attention, but the seal is intent on getting his fishy prize.
The passengers on the boat continue to taunt the gigantic seal with the fish, acting as if they will finally give it to him.
"That thing is huge" screams Brent in pure disbelief that the seal is still hanging onto the boat after so long.
Eventually they toss the fish to the seal who quickly makes his exit to the excitement of his audience.
