Comments 9

Miyazaki Ocean Dome: Largest Indoor Water Park in the World – Japan

By P Chong                                  24 April 2010

From the natural to the supernatural, from reality to fantasy, from the possible to the impossible, man’s ingenuity & capacity never fail to astound you. In this DNA era, many of the greatest, largest, tallest structures have come about to fulfil the “impossible dream”!

Who said “you can’t build castles in the air”? Like what Dr Napoleon Hill, the author of “Think & Grow Rich” fame, would say:

Whatever the mind of man can conceive & believe, it can achieve.”

Nowadays, it’s all a question of money!

The World’s largest indoor pool, Miyazaki Ocean Dome, Sheraton Seagaia Resort, is a large resort complex in Miyazaki, Japan.

It’s got the capacity to hold up to 10,000 people!

The name Seagaia is a combination of the words “sea” and “gaia”, which means earth. The Ocean Dome is listed on the Guinness World Records as biggest world indoor water park. It opened in 1993 in Miyazaki, Japan. Closed in 2007, it is now totally renovated as home to enormous indoor water park with white sandy beach, palm trees, water slides and a wave machine capable of surf-levels.

The new beach is huge approximately as many 6 football fields that allows everybody to lie on “own beach”. The temperature is like the Copacabana – about 30 C to the air and about 28 C to the water.

The central point of this artificial beach is the retractable roof, which will be opened on sunny days, on less sunny days it is closed. However the clear ceiling provides you with a perfect blue sky.

The Ocean Dome is only one part of the Sheraton Seagaia Resort, which offers several of hotels, World Convention Center for 5,000 participants, restaurants, tennis courts, shops, golf, board rental, zoo, and many other activities.


  1. Curtis says

    This pool closed down in 2007 so you might want to mention that.

    • Louella Haenel says

      I would love to know who were the architects and which company was used to construct this?

    • Please send me the details of the one in Germany the website would be great!

  2. Hello there, I discovered your site by means of Google whilst looking for a related subject, your website came up, it appears good. I have bookmarked it in my google bookmarks.

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