Country Cascades Waterpark Resort has announced a $30 million expansion that will provide new guest rooms, a grand lobby, restaurants, and more activities and entertainment.The company says a new seven-story River Town area will have 91 mountain-themed rooms, each designed for families, accommodating up to six guests. The expansion increases rooms to 322 guestrooms with 133 suites in the existing Country Tower and 98 split-room suites at the Summit Tower.