Can you imagine swimming beside a 12 m (41 feet) long shark while it’s on an eating spree? Well, that’s what we did when we swam with the whale sharks in La Paz, Baja California. The whale sharks, known locally as the Tiburon Ballenas, are the largest fish in existence and navigate in warm water. The gentle beast is no danger to the humans as it feeds on plankton. They congregate in the protected marine area north of La Paz, where diving is forbidden.

Our morning boat trip started around 9 am from La Paz marina, where we boarded a small 16-passenger boat. That day, we were a small group of 10 including our captain Luis and guide Alessandro. We were eagerly scanning the ocean as we went, trying to find the sharks. The giant fish can be tricky to spot as they don’t breach like true whales do. They can only be spotted when the dorsal fins rise over the ocean when they feed. Because the weather had been stormy and windy, the sea was rough with 3-feet / 1-meter waves, making it even harder to see the animals. After a bumpy 20 min ride from the pier, we reached the protected area and found other boats already in place. A good sign that the whale sharks were present.

A maximum of 6 boats per site area and 8 divers per dive are allowed though most tour operators ignored these. Our boat didn’t head directly to the boat cluster but instead looked for other sharks, which I liked.

Finding the Whale Sharks

We soon noted another shark and our guide Alessandro told us to be ready to jump. We stood ready, shorties and snorkel gear on. Given the rough seas, he recommended to not-so-strong swimmers to wear their life jackets. Bruno decided to forgo his jacket, but I wore mine as I am not comfortable in the water.

Navigating around the whale sharks

Navigating around the whale sharks

Per our guide’s instructions, we swam up to the shark as soon as we jumped to keep up with it. Other rules required us not to approach the sharks less than 2 m (60 inches), never touch them and stay on the side. These were hard to follow due to the rough seas and the low visibility of barely 3 meters (9 feet). Even that big a fish disappeared quickly into the murky water. We would see it for one second and miss it the next, only to find it close again. Swimming as fast as I could, I came close to the 4 m-shark. I was ecstatic! Sometimes slow, sometimes fast, the fish did not care about our presence and fed as it went.

Scanning the ocean to spot the whales

Scanning the ocean to spot the whales

Respecting the Marine Life

Several boats surrounded the sharks, preventing others to approach. However, our captain Luis was respectful and kept away from these clusters. While we were disappointed that we did not watch more of the sharks, I truly appreciated the captain’s respect for the animals and decision not to crowd the fish. The animal safety and protection came first, and I was glad of their respect even if that meant we would not get a closer view of the big animal ourselves.

Into the water, snorkeling toward the whale

Snorkeling towards the whales

As we snorkeled for the second time, we approached a bigger fish, about 7-8 m long. The bigger the fish, the faster they swim, and it was a real challenge to keep up. This time, we barely saw the tail but what a tail! Given the first shark had swum away fast, Luis told us up to head back to the boat so we could search further. Before we were able to regroup with our boat, another tour company came to pickup their customers that had joined our group in the water. As the boat approached, I tried to swim away but I was not fast enough. Another guide from that boat was still in the water and yelled at me to move away from the boat. I yelled back that I was trying but that they should also control their boat better. Interestingly the captain was helping customers in the boat, leaving the boat without guidance to go as it pleased. The guide and I entered into a yelling match. I tried my best to move away, but their lack of safety respect was frustrating. They clearly did not attempt to pay attention to other swimmers. It did not feet right. I heard Alessandro mentioned the boat name to Luis in an angry tone later on, which confirmed my thoughts.

Meeting A Whale Shark Up Close

Once finally aboard, the captain enquired who had or hadn’t seen the animal, to make sure we all had a chance to admire them. Together with Alessandro, they searched the open sea for the third time. Our luck turned as we came across a larger fish, with no other boat in sight. We quickly jumped and had the time of our life as the fish kindly stayed close to us. He swam fast but kept turning and coming back to our enjoyment. I got the chance to view the head, wide open mouth as it was feeding. Then the tail again sweeping away. Then the head again… What a perfect ending on that morning! What a thrill!

Large Whale Shark

Large Whale Shark

We boarded back one last time before Luis headed back to La Paz. Everyone on board chatted and exchanged details of the encounter, happy snorkelers! Moreover, the ethics of our captain and guide had been a real relief: from the guide ensuring the animal’s protection and snorkeler’s safety, to the captain respecting the distances to both animals and humans. The whale sharks we found with were on the smaller size, closer to 6-8 m, but the experience was fantastic nonetheless. We still felt tiny along these huge animals!

When to Go

The whale sharks usually congregate in the Sea of Cortez between November and April, but other locations will have other timeframes.

Where to go

In Mexico, the sharks migrate to Baja California (the Sea of Cortez, in the Bay of La Paz, and Cabo de San Luca) and Yucatan (Isla Mujeres, and Isla Holbox). Around the world, the whale sharks can be found in: Belize (Gladden Spit), Honduras (Utila), Indonesia (Ujung Kulon), Madagascar (Nosy Be), South Africa (Sodwana Bay), Djibouti (Gulf of Tadjoura), Australia (Ningaloo Reef), India (Gulf of Kutch, Saurashtra Coast), Philippines (Donsol, Batangas and Southern Leyte), Indonesia (Papua Nabire Cenderawasih Bay), Mozambique (Inhambane), Zanzibar and Pemba islands in Tanzania, and Gulf of Oman (Ad Dimaniyat Islands).

If you are interested in other swimming opportunities in Mexico, our friend Rob at 2 Travel Dads shares their experience on swimming with sea turtles in Akumal in Quintana Roo, or a complete guide to snorkeling in Cabo San Lucas.

How to Organize

We booked our tours directly through a small local company, but several companies offer the half-day activity. Several whale shark cruise options can also be found on Viator.com, which I would recommend as their former Director of Content Marketing . This is an affiliate link, which means we receive a percentage if you make a purchase using this link, at no additional cost to you. Our opinion is our own and is not impacted by this affiliate link. 

Be aware that the bad or windy weather might cancel the tour.

Swimming with Whale Sharks in the Sea of Cortez, Mexico // Can you imagine swimming beside a 12 m (41 feet) long shark while it’s on an eating spree? Well, that’s what we did when we swam with the whale sharks in La Paz, Baja California. The whale sharks, known locally as the Tiburon Ballenas, are the largest fish in existence and navigate in warm water.

Snorkeling with Whale Sharks in the Sea of Cortez