Diving Cocos Island in 2025... (Shot in 8K)

Diving and Snorkeling
105 followers
4 Video Views·Nov 19, 2025
Full trip report from an epic 7 days diving the legendary Cocos Island with the Sea Hunter Liveaboard. Cocos delivered some serious pelagic magic: Galapagos sharks, silver tips, black tips, white tips, tigers, whale sharks, mantas... and schooling hammerheads. This is one trip we won't forget!
What's up dive hards? We are finally back in one of my favorite places on the entire planet. Welcome to Cocos Island
Good morning, so I'm currently in my hotel room in San Jose, Costa Rica, and that's where this journey is gonna begin from here
We're gonna take a three-hour car transfer to Punta Arenas
Which is the port town where we're gonna board the undersea hunter and then it's a 36-hour
550 kilometer crossing to Cocos Island and the crossing can be a really beautiful
serene contemplative mindful experience
Or it can be extremely painful and literally the worst seasickness you've had in your entire life for 36 hours straight, so
fingers crossed for an easy crossing
Okay, welcome to Cocos our crossing wasn't terrible the first 24 hours were rough
But we were going directly against the waves the boat was doing more of this
Which is way better than when the wind and the waves make the boat do this weird
Swirly motion and then it totally eased up and there was plenty of time to get set up and get ready for diving the epicness
That is Cocos Island
And if you aren't familiar
Cocos is the largest uninhabited island in the world and it hosts a lot of local fish life that makes it a really appealing
migratory hub for many many species like whale sharks
Mantas and of course the scalloped hammerhead and out here nothing is guaranteed
But also anything can happen at any time and that's why it's so exciting to dive Cocos and right now
We're in the heart of the rainy season so the surface conditions and the visibility are going to be challenging
But we also have really good chances for some of that pelagic magic
So we're moored up in Chatham Bay, and it's time to do our first dive
Let's get out there and see what Cocos is all about
Okay, so we're a little bit over halfway through our trip and still have three days of diving left and so far
It's been awesome. Lots of pelagic action, and I'm also really enjoying the local fish life
Just beautiful colors interesting behaviors big schools of snappers and jacks and of course the barber fish
Which are the main attraction for the hammerheads and the hammerheads are definitely here
Probably more than I've had on many of the trips that I've done during this time of year and the thing with Cocos is
you really need a lot of patience and
Like generally a positive attitude towards the game of luck that is Cocos because sometimes the dive site will hit for you
And it'll hit super hard and your dopamine goes through the roof
And then the next dive at the exact same site
It'll be a ghost town and of course there's still a ton of life to look at and to enjoy
But you know we tend to be relative creatures
So always good to level set your expectations and attitude to make the most of every dive here
And then aside from the action
There's a lot of other factors like swell which can stop you from going to some of the more exposed dive sites like El Sion
Or Dos Amigos and then of course the visibility which has been challenging somewhere between
30 to 70 feet on most dives depending on where the thermocline is and just given the density of sharks right now
I'm always wondering how many hammerheads are just beyond the visibility
But there's been some heavy rain recently that should hopefully clear up the water column, so we've logged 15 dives so far
Let's see what surprises Cocos will give us for the last nine
Let's go diving
You
Okay, so that was a very good trip to Cocos
We did get a few days of great viz and some massive schools out in the blue
As well as some really good cleaning station action and our best dives for hammerheads were Dirty Rock and Manuelita outside
while Dos Amigos small had a ton of big Galapagos sharks and a surprise whale shark encounter and
It's not always the case that you get this lucky with the sharks
I mean you're always going to be very likely to see hammerheads in Cocos
But the really big schools and the close encounters are more of a gamble and the truth is
That a lot of stars have to align to get those banger dives and in my experience
It's something like 20% of the dives will deliver 80% of the highlights and because Cocos is so remote and the diving is deep
You only do three dives per day
So two deep dives in the morning which typically have the best chances for action and then one relatively shallow
relaxed dive in the afternoon that can also be really good like we've had mantas and
Tigers and all sorts of stuff show up on the afternoon dives, but it's generally about the morning dives and those deep dives
Typically focus on cleaning stations. So you descend very quickly you get to the cleaning station you grab on to some rocks not the coral
You stabilize yourself in the current and then you wait for the sharks and because sharks are super shy
You have to really hide and hold your breath for long periods of time as they come in
And I know you're not supposed to do that
Make sure you know what you're doing before you go to Cocos holding your breath underwater can obviously be very dangerous
And then once you run low on NDL you leave the cleaning station and finish the dive out in the blue
where you can have really good chances to find those big schools and hammerheads and
Dive site selection really matters here
It's also very tricky because conditions change and the hammerheads move around and so there's some art and science
To picking the right site at the right time
But also because the dive site you want isn't always available. So the weather conditions other boats
The park rangers require that each dive site have some time to breathe without diver pressure
So there's this like delicate dance that the cruise director has to do between the captain
The park rangers the other boats and nature and we got very lucky. We got the legend
We got Juan Manuel who in my opinion is the greatest cruise director of all time on any live aboard in the world
That's a big statement, but he is hilarious. He brings really good energy
He can manage a group of pain-in-the-ass
Demanding divers like me and when he's guiding he's fully focused on finding the action and putting you in the best possible spot
to experience it so with Manuel if you know, you know, he's just like the best of the best and
Honestly the undersea hunter in my opinion is probably the gold standard for open ocean
Eastern Pacific diving like the safety protocols are best in class and safety is important on every live aboard
But in particular when you're diving a place like Cocos, which is inherently higher risk than other places
So like every diver gets a dedicated PLB
That's regularly tested in Cocos Island and I always carry my own PLB and EPIRB
but I prefer carrying a unit that's actually tested in the location where it would be used in an emergency since
Honestly, these things can be a bit quirky and they don't always work everywhere
That's why I have the redundancy of two lifelines and a Garmin mini. There's also 24-7 night watch
So all the time there's someone who's actively awake and checking the boat for fires and that sucks for the crew
but it dramatically reduces the risk of a boat fire or running aground if the mooring line breaks or whatever and
Honestly, I wish every boat had this kind of dedication like a lot of boats will say they do
But they don't actually and as a bonus on our trip
We also had the benefit of dive master Juan who's very experienced in hyperbaric medicine
So in terms of safety protocols, I haven't encountered anything better than undersea hunter big gold star
And obviously the dive operation is super solid. All the critical equipment is well maintained tanks are refilled directly on the skiffs
There's plenty of space for cameras and ever since the tiger shark accident
There's now two dive masters for each dive group one in the front and one in the back
Which lets you space out a little bit more which I really appreciate the sea hunter boat itself is very stable
Super comfortable the rooms have basically unlimited cabinet space
Which even I wasn't able to fill up with all my camera stuff and that never happens
The food is very wholesome and tasty, but also healthy like nothing too heavy
Protein and veggies with every meal Chico is an OG of Cocos Island
One of the best chefs out there and the rest of the crew is also awesome
Like I can't say enough good things about them some of the best out there. Seriously
It's a privilege to work and dive in Cocos and you can really feel that
dedication and seriousness in every one of the crew members, so
Do I recommend Cocos to everybody?
No, it's expensive it can be incredibly hit-or-miss the diving conditions can be really challenging
But if you're an experienced diver and you understand the risks and like chance that you're taking then a hundred percent
Yes, like Cocos is where I've had some of my most memorable experiences ever
So what'd you think? Is Cocos on the list? Let me know in the comments below and until next time
dive hard
