SANDUSKY, Ohio – Three Ohio water parks are part of larger chains rated in the Top 10 in the United States by USA Today based on opinions from experts and readers. Kalahari Resorts and Conventions, which operates four water park resorts, was ranked No. 1 for the second year in a row. Kalahari has parks in Wisconsin, Pennsylvania, Texas and Sandusky, Ohio. A fifth property in Virginia is slated to open in 2026.