I couldn’t believe it. Here I was…..about to swim with the gigantic Mafia Island Whale Sharks!

‘Jump, jump’ the captain yelled at us and the 4 other tourists that were on the traditional dhow boat. I put my mask on and ungraciously stuck my legs over the side, fins attached. I looked down at the dark blue water below apprehensively. This was the moment I had flown all the way to Mafia Island for. To have a chance to swim with whale sharks on Mafia Island – the world’s largest fish.

No time for hesitation now. I pushed lowered myself off the boat into the water. Trying not to splash so I didn’t scare the shark away.

ALSO RELEVANT: Complete guide to visiting Mafia Island Tanzania

Mafia Island Whale Sharks

Mafia Island Tanzania: a hidden gem

Mafia is the less known neighbour of Tanzania’s popular island, Zanzibar. Unlike Zanzibar, which is fully equipped for (and overrun with) tourists, Mafia is still relatively untouched. Despite the lovable laid-back locals, the beautiful palm tree beaches and vibrant reefs, the place was void of tourists.

Note that the island is still very cut off so life there is basic. For me, this was all part of the charm.

Those who do venture there, usually come in search of an encounter swimming with whale sharks who migrate to the area each year between October and February.

If you are planning a visit I’ve done all the groundwork for you with my Tanzania Mafia Island guide. You might also want to check out my list of things to do on Mafia Island and my complete budget breakdown in how much does it cost to visit Mafia Island.

Thinking about diving? Check out Mafia Island Diving….is it good?

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Afro Whale Shark, Mafia Island

After doing a lot of research, we decided to go with Afro Whale Shark Safari Mafia Island…..why?

  • They had great reviews on Tripadvisor
  • They are the first to leave each morning which means you have a chance to see and swim with the sharks before the other tour boats join in as well (on most tours the tour boats all end up together)
  • They are a locally owned and run company (most of the other tours are owned by westerners and I like to support locals in the places I go). Afro’s team used to be fishermen so have been finding whale sharks their whole life because the sharks hang out it food-rich areas.
  • They are one of the cheapest at $60…..one company charges as much as $100 for effectively the same tour and experience!
  • The tour includes everything (pick up, drop off, snacks, water, fins and mask) so all you need to bring is your swimming costume and sunscreen
  • They were super friendly and quick with responding when I emailed

It was easy to book. We sent them an email in advance. Once on the island, we realised this wasn’t necessary. We just asked out hotel to call them the night before if we wanted to do a whale shark tour the next day. Mafia Island doesn’t do planning!

Swimming with Mafia Island Whale Sharks

We were collected by tuk-tuk from where we were staying in Bustani lodge and taken to Afro Beach Bungalows which is on a secluded and beautiful stretch of beach.

Need somewhere to stay? I can really recommend Bustani lodge. Great value hotel for the level of luxury you get and one of the few places on the island with a pool. For budget option, I’d suggest Whale Shark Lodge

We were kitted out with a mask, snorkel and fins and given a briefing. As we had been warned when booking, there is no guarantee of seeing the sharks, they are wild animals after all. As someone who has been on 6 dolphin tours without ever spotting a wild dolphin, I didn’t get my hopes up!

Afro’s team were a little shy but very friendly and happy to answer our questions.

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Afro Whale Shark Mafia Island review

Spotting the Mafia Island Whale Sharks

It took less than half an hour before Afro’s team were able to spot a whale shark in the water.

I saw a flash of a large fin break the surface not far from where we were. A classic Jaws moment! The engine was cut off and we were instructed to jump in.

Afro Whale Shark Mafia Island

In the water, Gil grabbed my arm and pointed at something below me. Coming from the depths was the dark shadow of a Whale Shark. I heard my breath quicken and felt the goosebumps go up on my arms.

It was huge!! About 8 or 9 metres.

swimming with Whale Sharks Mafia Island

The shark was moving slowly but at surprising speed, right towards us. It wasn’t until it was by us (it literally came within a couple of metres) that I could truly take in its awesome size.

Shortly after, a second whale shark joined.

Mafia Island whale sharks

Each time we got tired, we would get back on the boat and Afro and his team would line us up again with the shark so we could jump back in. There was no pressure or rush so we could jump as many times as we liked. After an hour we were all tired and unanimously agreed we were happy to head back.

Afro passed round some snacks (much appreciated as after all the swimming and adrenaline we were hungry) and we all sat soaking up the sun grinning ear to ear.

What an epic experience!

Not happy with doing it just once!

In the short time that we had been on the island, we already felt that we had become good friends with Afro and his team.  They also organised a number of other trips for us (at a discount as we had already done the shark tour with them) including visiting the marine park for snorkeling and a BBQ on a secluded sandbank. They also arranged for us to join a local night party on the beach to celebrate New Year’s Eve.

It was a memorable day to say goodbye to what had been a great year. It seemed fitting that the new year should start with a bang, there was only one thing I could think of doing…..Mafis Island whale shark safari, take 2!

In fact, we ended up doing the tour 4 times. It was worth it and each time offered a different experience.

Insurance for swimming with Whale Sharks

Make sure you have good insurance that covers you for open water swimming. Although Mafia Island has a hospital, the island is remote. It’s also common for bags to be lost by airlines. So you’ll want to be insured.

For insurance, I use World Nomads for my travels for a number of reasons. One of those is because they offer adventurous activities cover including snorkeling with whale sharks. You can get a quote with them using this link.

Swimming Mafia Island Whale Sharks

Things you might want to take with you:

  • Mask and Snorkel.….although these are provided you might want to have your own for comfort. It’s also a great gift you can leave behind to a local fisherman or whale shark tour guide!
  • Anti-fog spray…..so worth having!! It’s really annoying if your mask keeps fogging when you are trying to see the Whale Sharks
  • Basic rash vest…..keeps you protected from the sun and means you don’t have to worry about the odd jellyfish you might encounter. This is another nice gift you can leave behind.
  • Eco sunccreen….protect you and the reefs
  • Extra pair of sunglasses….if you lose your only pair then you’re really stuck as there are none to buy on the island!
  • Tanzania guide book

Top tips for swimming with Mafia Island Whale Sharks

The lodge or hotel that you are staying with will be happy to organise your whale shark tour, however (!!!) be careful as they will often say they have booked you with the tour company you asked but in actual fact will take you somewhere else.

For their experience, warmth and comfort I fully recommend Afro. I also liked that they were relaxed letting us take as long as we want and also offer a longer tour (more chance to see the sharks) than others as they leave an hour early.

Whoever you choose to book with, here are my top tips:

  • Do your tour on day 1 of arriving on Mafia Island so if you don’t see them, you have as many chances as possible (or if you get addicted you can go again!)
  • Keep your swimming costume in your hand luggage in case (like us!) the airline loses your bag! It’s also worth keeping your anti-malaria tablets and a summer outfit in your hand luggage.
  • The tour can take anywhere between 2 to 5 hours depending on how quickly (or if at all) you see the sharks. On one tours with Afro we saw them after 5.5 hours as we were starting to head back (the other boats had already gone back to the island so we were alone which was great). So don’t be disheartened if you don’t see them early on. You never know when they might show up..
  • From speaking to tour guides on the island, I understand the chances of seeing sharks during peak whale shark season to be around 70-80%.
  • Take plenty of sunscreen and sunglasses. If you burn easily you might also want to wear a top while in the water. I saw lots of tourists red with sunburn. There is little shade on the boats and the sun is really strong
  • Most of the time the water was fairly calm but sometimes it got a little choppy. Bring tablets if you are prone to seasickness.
  • If you get hot on the tour while searching for sharks or need to pee, just ask to take a break and a 5-minute swim to cool down
  • Included in the price of the tour was pick up and drop off at our accommodation, water, snacks, community fees and snorkelling gear.
  • Don’t take anything with you on the boat that you don’t want to get wet unless it is in a dry bag
  • When you jump into the water and swim near the sharks, try not splash too much. The calmer you are and the less noise you make, the less likely they are to swim away.
  • Once you’ve got your photo, have a swim with the sharks without worrying about pictures.
  • If you are spending longer on Mafia Island, I’d suggest spending a day visiting the lagoon and snorkelling in the marine park. Check out: Top things to do on Mafia Island for more ideas.

Love the whale sharks? protect the whale sharks!!

Since writing this blog post I have returned to Mafia Island a further 2 times, also working on conservation projects with the whale sharks (I became a little obsessed!…..if you are from the UK also check out my latest project, Blu-ee Fest). Whale Sharks are a vulnerable species whose numbers are in serious decline. They face threats from fishing, pollution and finning.

Swimming with Whale Sharks offers an incredible experience that really connects you to our ocean. While on Mafia you can do your bit to look after these creatures. I really urge you to encourage your tour company to follow the code of conduct when swimming with the sharks and if you see anything that isn’t ok (like littering or aggressive driving) that you speak up.

The rules that should be followed on these tours are: leaving 10metres between the boat and the shark. Cutting the engine when the boat gets near. Not jumping from the boat (only lowering yourself in the water) and also not touching the sharks. And there should be no more than 10 people swimming with the shark at one time.

Following the rules actually leads to a much more relaxed experience and the sharks are less likely to swim away from all the noise and splashing so it works in your favour too. Swimming with more than 10 people in the water feels like a scene from the Titanic….it’s not fun!!

Over-fishing is also a huge issue in the area. You can MASSIVELY reduce your impact when visiting Mafia (and other islands) by not eating lots of seafood when you are there…..tourists are effectively taking away the food source from locals and marine life. It’s worth thinking about!

Lets all do our bit to help protect the Whale Sharks.

Visiting Tanzania?

If you are planning a visit to Tanzania you might also want to check out my other blogs:

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