MASON, Ohio — A $10 million water park expansion opening next year at a southwest Ohio amusement park will more than double the size of the current water park to 33 acres.

Kings Island officials announced the expansion of its water park on Friday. They say the expanded park will feature a 39,000-square-foot wave pool with a water depth of up to six feet and wave heights of more than four feet. There also will be an action river with new waterfalls and jets to create turbulent water effects.

The Soak City water park also will include a new sand volleyball court area, more than 30 water slides, tropical lagoons and family activity areas.

Soak City is scheduled to open in the spring of 2012 and will be included in the park admission.

First Published September 2, 2011, 9:39 p.m.