Mako Island Aerial View

Mako Island is a fictional island in the H2O: Just Add Water, Mako: Island of Secrets and H2O: Mermaid Adventures series. It is located approximately 50 km off the Gold Coast, Queensland, Australia. In an episode "Bad Moon Rising," a coastal map is shown, where Repulse Islands have been replaced with Mako Island.


Mako Island was formed after a comet crashed into the Earth. We know that one of the shards impacted in Ireland forming the Sea Caves of Ireland. So other shards may have landed in other locations creating moon pools wherever they impacted. It is possible that these other moon pools could have also created mermaids all over the Earth in other places and other times. Its origin is revealed in Season 3.

Mako Island has a magical sea cave at its base leading to the Moon Pool, where Cleo, Emma, and Rikki, and the former mermaids: Gracie, Louise, Julia, Charlotte, and Evie, got their mermaid powers. There is also a secondary cave leading to a waterfall outside. The waterfall is part of a stream running through a mangrove forest. There are many caves underneath Mako Island, enough to conceal the entire Mako Pod. Mako Island has been around long before humans walked the earth and it will still be around long after humans have gone.

Around Mako there are the largest population of Mako sharks and sea turtles, some of which cannot be found anywhere else on earth.

Off-shore there are coral reef sands and a number of wrecks, including Miss Louise Chatham's boat, the Lorelei. On the northern side of the island there is a place called Triton's Reef, its a known as place where sharks breed.

Throughout history, there have been peculiar happenings around Mako, such as a whirlpool and numerous ship wrecks and disappearances, giving Mako an eerie reputation.


H2O: Just Add Water

Season 1

In Mid-2000s Cleo, Emma and Rikki accidentally go to Mako Island. While looking for a mobile signal, they fall into a cave. Emma realizes an alternative way to get out of it and they jump into the Moon Pool just as the full moon passes over. They are transformed into mermaids. Days later Emma found a locket at the bottom of the Moon Pool. Linda Denman, a marine biologist, arrives to Mako, in order to study the fish around Mako. She and her team discover the the Moon Pool and, with the help of underwater cameras, she discovers that Cleo, Emma and Rikki are mermaids. Louise Chatham reveals that during a lunar eclipse, the Moon Pool will react to the moon magically and the mermaid that is in the pool when the eclipse occurs, will lose her powers. The girls deceive Dr. Denman, who believes that they have lost their powers forever, and she leaves the city. Twelve hours later the girls again change to mermaids when they come in contact with water.

Season 2

During a special planetary alignment, Cleo, Emma, and Rikki get moonstruck, and go to the moon pool in a very special full moon, which results them gaining weather powers. Charlotte became aware of her grandmother's past and becomes a mermaid by jumping in the Moon Pool. She receives all the three mermaid powers, (including its amplified versions). She also believes she is  and takes Cleo's locket, claiming that it was her grandmother's and now it was hers. Max says to Lewis of a powerful planetary alignment that happens in every 50 years that can take a merperson's powers forever. Charlotte devises a plan and goes to Mako Island during the full moon despite the girls warning her about it earlier. There she battles with the girls, but loses, and ceases to be a mermaid.

Season 3

When the Comet Eva returned to Earth in 2010, a strange waterfall appeared in the Moon Pool creating a Water Tentacle, that was trying to attack the mermaids. Later, it is revealed that the tentacle was only trying to warn the mermaids about it. The comet entered the atmosphere on February 7th which was the same day when the water first attacked Cleo, Rikki, and Bella.

Mako: Island of Secrets

Season 1

After Bella, Emma, Cleo, and Rikki have all left for colleges or work (though that is uncertain) the real mermaid Pod returned to Mako Island, and took residents around Mako. Zac discovers a tunnel entrance on a full moon, which leads him into the Moon Pool when he touches the symbol at the end of the cave. He and the mermaids Lyla, Sirena, and Nixie later discover a weapon stored inside: a trident left behind after a war between mermaids and mermen. After a brief rivalry, Zac and the mermaids come together to stop a boy named Cam from becoming a merman and bringing the Trident into the moon pool, which would destroy the moon pool.

Season 2

Zac's girlfriend, Evie McLaren, becomes a mermaid when she swims into the moon pool to save her boyfriend from the new mermaids, Mimmi and Ondina. They later discover a merman chamber hidden in a different location on the island. It was an ancient chamber designed by mermen during the ancient war to strip the Moon Pool off its magic, along with the magic and life of every mermaid across the world. Merman Erik, refusing to believe it wasn't meant for more, stole the trident stone to activate the chamber and almost drained the lives of all mermaids. Zac manages to shut down the chamber permanently.

Season 3

Evie, Mimmi, and Ondina are on their way to the full moon ceremony when they encounter the Water Dragon. Fortunately a Chinese mermaid, Weilan, joins and helps them. Evie loses her tail to the Water Dragon when she tries to help Zac. Eventually they find out that The Water Dragon is actually Nerissa, Mimmi and Zac Blakely's mother.

H2O: Mermaid Adventures

Coming Soon


  • The set of the beach scenes on mako was located 10km (6 miles) south of the center of Gold Coast at Burleigh Head National Park. Show me on the map


Main article: Mako Island/Gallery

See Also