Six Flags Entertainment cut its full-year forecast and said it is exploring the sale of land and other assets, as the theme-park operator reported falling visitor numbers.

The amusement park giant, which operates Six Flags Fiesta Texas and Schlitterbahn, blames weather for sagging attendance as it prepares to offload two of its properties.

Six Flags, which was formerly a longtime Arlington-based company, is now headquartered in Charlotte, N.C. after the company merged with Cedar Fair.