Man vs. Wild star Bear Grylls has actually got quite a few side projects that help keep that cash flowing even when he's not in front of the camera.
Here are some of the highlights from his financial journey over the years that have helped him mint his fortune in spades.
While it isn't everything, the successful survivor's television career has obviously served as a critical piece in founding his financial fortune.
Man vs. Wild, his first blockbuster show, was watched by over a billion viewers.
But in more recent years, the Discovery Channel sensation managed to leverage his growing popularity into several other shows, including Running Wild, in which he's taken numerous celebrities with him on his adventures in the wilderness.
但近年来，这位探索频道(Discovery Channel)的红人成功地利用了他日益增长的人气，推出了其他几档节目，包括《越野千里》(Running Wild)，在栏目中，他带着众多名人一起在荒野探险。
According to The Richest, it's estimated that Grylls raked in a whopping $30,000 per episode and that was just during his stint on Man vs. Wild.
Since then, the numbers only seem to have gone up.
Needless to say, there's no doubt that Mr. Grylls' personal fortune has received a healthy boost from the years he's spent in front of the camera.
Television career aside, Grylls has also made several savvy real estate investments over time, the most impressive of which has to be the island he owns in Wales.
But we're not talking about a dirt-rich celebrity dropping a ton of cash on a fancy new island just for fun.
According to The Telegraph, Grylls actually bought the island in 1999, over five years before Man vs. Wild started up.
据《每日电讯报》报道，格里尔斯实际上是在1999年买下这座岛屿的，比《荒野求生》(Man vs. Wild)开播早了五年多。
The island, which he considers one of his best investments, covered 20 acres that came with a cottage in need of renovation.
He spent the four years following the purchase scrimping and saving up enough money to make repairs.
In 2008, Bear estimated he'd spent 100,000 pounds on the project and that it was worth a cool million.
Call it old school if you'd like, but when The Telegraph asked how he preferred to pay for things, Gryll's answer was short and simple:
"Debit card because then there's no risk of getting into debt."
Even when he was still getting started, Bear refused to fall victim to the "swipe and forget it" mentality that plagues the modern consumer-driven world.
While he may have the gusto to buy a fixer-upper island, that doesn't mean the man spends money at the drop of a hat.
In fact, he's demonstrated an ability to be cautious enough to ensure that his personal fortune remains in the black.
Mr. Grylls has carefully curated his persona as a tough-as-nails survivalist, but he's also built up an impressive side career as an accomplished author.
His lengthy list of book topics includes survival tips, lifestyle advice, his own personal experiences, and even a number of children's series.
A catalog of books that big by one man is an incredible sight to behold on its own nevermind the fact that for Grylls, it's a side hustle.
Sure, he might already own an island and be paid tens of thousands of dollars per episode,
but when you consider the fact that he'd reportedly sold over three million copies of his books by 2015, the amount of influence that "Bear Grylls the author" has played in building his fortune becomes a bigger deal than just some cash on the side.
For a man who's spent much of his life showing off his skills by surviving with next to nothing,
the guy seems to have managed to make bank on his merch sales.
According to the Evening Standard, he was estimated to have brought in over three million pounds in merchandising in 2015 alone.
So what exactly does a man who eats maggots and pees on his clothes sell?
As it turns out, the Bear Grylls merch line includes everything from his famous Bear Grylls Ultimate Pro Knife to a water bottle that also serves as a lamp and power source.
While merch sales are hard to pin down on a consistent basis, there's no doubt that the sale of his own products has created some lucrative side income for Grylls.
While there's no doubt that Grylls has a boatload of money, he's made it clear from early on that just because he has more than he needs doesn't mean he throws money away with the little transactions.
As he told The Telegraph, he's tried not to convert the money he earns from his U.S. shows into British pounds because he doesn't want to lose cash in the transition.
Instead, Grylls put his U.S. dollars into an international investment fund, where it can gain value without the need to go through any switch over to U.K. currency.
While it seems like a small detail, it comes from a mind that is clearly focused on making the best possible decisions at every turn.