Lemuria

Lemuria is inhabited by mermaids. 

Atlantis destroyed much of Lemuria with nuclear weapons 150,000 years ago. The survivors fled to the coast. At one time, Lemuria controlled half of what is now the United States with Atlantis controlling the other half. Even after Lemuria lost a lot of their territory, they were still able to live on the coast and the seas.

There are two underwater cities in the Pacific Rim. Asmlata is the name of one of these cities. 

Lemuria is actively working with the Pleiadian base in Bora, Bora. The Pleiadians came down immediately following the nuclear destruction of Lemuria by Atlantis.  Since then, the two have worked together to better the planet and the oceans. 

Lemuria holds on to many of the secrets that originate from the depths of our oceans

There is a portal in the Pacific Ocean that opens to the Inner Earth of Lemuria.

The culture of Lemuria is around 10 billion years old.

The planet Maldek, after the planetary sphere came down from the higher dimensions. was in a holy union with Lemuria. They are both healing worlds with teal as a familiar color to the two worlds. There used to be a portal that connected the two civilizations. They shared a similar, ocean oriented culture.

Update

The last ocean culture that our planet had is retold in the Epic of the Illiad. 

The Lemurian Tablets

The Lemurian Tablets are the key to the secrets of Lemuria.

There are 12 of these tablets and they are located all over the world.

At one time, in the distant past, Lemuria controlled the entire planet except for Egypt. The Lemurian Tablets are relics of that time. These tablets are keys to the physics of that past. During this time, water covered much of the Earth.