‘Time to fight like hell for white sharks’

Cage-diving at Guadlupe (David Serradell)
Cage-diving at Guadlupe (David Serradell)

The effective abandoning of Mexico's Guadalupe Island to all activities other than commercial and illegal fishing will lead not to the protection of great white sharks but to their “extermination” – at what many divers regard as the world’s best white shark location.

Also read: White shark cage diving set for Nova Scotia

So says Mike Lever, owner of Nautilus Dive Adventures, one of the cage-diving operators whose liveaboards would be barred from Guadalupe under a new five-year biosphere reserve management programme claimed to outlaw diving and sports fishing. 

But Lever denies that the closure of the park is already in force, as reported on Divernet on 19 January – because he contends that such an action would be illegal.

Fighting for white sharks - Mike Lever of Nautilus Dive Adventures  (Juan Camilo)
Mike Lever of Nautilus Dive Adventures (Juan Camilo)

“The park is open – this is verifiable through any Mexican attorney familiar with environmental law,” he has told Divernet. “The temporary closure ended 1 January – the government is illegally trying to push through a new management plan that will allow commercial fishing to continue but stop all tourist activities.

“If it is successful, it dooms the shark population to extermination from poaching and illegal fishing – we’re fighting that in court, and with every resource that we have. 

“Its process is illegal in that it is required to consult with the consejo (council of stakeholders), hold public hearings and such.  It can’t just write a management plan and make it the law!”

Costs of closure

Guadalupe lies 160 miles into the eastern Pacific from Baja California, has been visited regularly by dive-operators since 2001 and has been a marine reserve since 2005. Great whites, often large individuals in the 25-50 age range, feed on seals and other pinnipeds in the area, especially between November and June.

Mexico’s National Commission of Natural Protected Areas (CONANP) administers the park, and its announcement of the permanent closure to dive-boats cited “bad practices” including the use of “attractants and observation cages”.

In its earlier report Divernet cited Lever’s long-held stance that the regular presence of shark-diving boats deterred poachers and facilitated scientific study at Guadalupe, and that closure would cost the local economy and the marine park itself up to US $25 million a year in lost fees.

Great white shark at Guadalupe (David Serradell)
Great white shark at Guadalupe (David Serradell)

The operators have not presented an entirely united front since the marine park was temporarily closed last year – there has been an element of blame-gaming for the incidents said to have brought them under fire from the authorities, and finger-pointing for alleged inequalities in fighting the ban.

For his part, Lever insists that his concerns are now solely for the sharks’ survival rather than about maintaining cage-diving operator profits, and says that he has in any case remodelled Nautilus commercially to compensate for the interruption to Guadalupe cage-diving.

“We have already pivoted our business, with new products like glamping and luxury camping with the most extraordinary whale interactions on the planet,” he says. “Our airplane-supported mobula ray and orca trips have mostly sold out and our marlin Mexico Sardine Run trips are doing well.  Socorro is very popular.

“But what keeps me up at night is my intense worry that this unique population of great white sharks is going to be exterminated by poachers and illegal fishing.  I fought like hell for Socorro 20 years ago – it’s time now to fight like hell for these white sharks.”

Spread the word

Lever is urging divers to spread the word about Guadalupe and to watch an informative 15-minute Ocean Talks video by Carlos the Malibu Artist that sums up the situation as he sees it.

While acknowledging that up to six sharks might have been injured or died over 22 years in connection with cage-diving interactions, the video puts this into the context of an estimated 300,000 cage dives, with the benefits these have brought in terms of cash, education and shark protection. It also suggests that lessons learnt have brought improved regulation in the wake of each rare incident.

Chumming was banned and, because the Guadalupe sharks were naturally well-fed, operators needed only to use frozen tuna head as an attractant, it says. No touching of the animals was allowed, and venturing outside cages was stopped some years ago.

Great white shark at Guadalupe (David Serradell)
Great white shark at Guadalupe (David Serradell)

The video also maintains that the marine park has been effectively abandoned by the authorities since the outbreak of the coronavirus pandemic, and that although scientific studies of the sharks were meant to have been carried out in that time, no such reports have yet been published. 

With CONAMP known to be under-funded and under-resourced, and commercial fishing still allowed, the fear now is that the large-finned great white sharks of Guadalupe will also prove irresistible to criminal groups conducting illegal fishing operations.

Also on Divernet: My Great White AdventureGreat White Shark Captivates FreediversWhen Hunter Becomes Prey


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Davis Thorton
Davis Thorton
10 months ago

Mike Levers operation KILLED this shark in 2019. Fight for them? His company is named as a reason for the closure. Takes a lot of sand to stand up in front of divers he refuses to refund and say fight for the sharks. Start by refunding your divers Mike, then apologise for killing this shark. Then quit the industry for good.

Mike Wells
Mike Wells
9 months ago

We are owed 20K for a cancelled booking to Guadalupe Island By Nautilus. They refuse to refund our group. Recently we discovered this video online from a Nautilus staff member. As it turns out the reason for the parks permanent closure is because of this dead shark. So, tell me, how is Mike Lever “fighting like hell” for sharks? Let’s start by refunding us the divers!


Just truth
Just truth
Reply to  Mike Wells
9 months ago

Mike Lever does not care anything about the sharks, which was proven by his failure to comply with the safety measures on cages directly causing the death of another great white that he tried to hide. He will spend your money on his private jet and other toys. Class action should be started to force him to refund.

9 months ago

Mike Lever is the cause of the closure. His operations continually did not follow regulations. They had two cage breaches, one which resulted in the death of a shark.

This line from the article “For his part, Lever insists that his concerns are now solely for the sharks’ survival rather than about maintaining cage-diving operator profits” is totally false. His company is not offering refunds for dives that were cancelled as a result of his companies wreckless actions.

If he had one ethical bone in his body he would offer refunds for the cancelled trips. Instead he is keeping the money for himself. It is like taking a deposit for a Cadillac, not being able to deliver that and offering a pickup truck instead. Sickening and disgusting actions be him.

Mark Worley
Mark Worley
8 months ago

It sure is ironic that one of the main culprits that lead to the closure of Guadalupe due to bad practices is the one standing on his soap box talking about its closure. Not to mention all the divers his company has refused to refund when other more reputable dive companies (Horizon and Aggressor to name two) have refunded their customers.

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