Fort Worth is the fifth-largest city in Texas and has a sub-tropic climate that changes throughout the year. Not too far from the Trinity River, the army base of Fort Worth is among the most populated in the country. Due to the heavy forest areas and prairies, this section of Texas has a more humid climate during the summertime. Lake Worth was created by a dam that spans across more than 30,000-acres of land. A hiking or canoeing trip through the Nature Center and Refuge, stroll through the National Zoo, or a walk-through Trinity Park are great ways to get in touch with nature. During the hot summer months, a summer rental cabin with a pool near Fort Worth is a great way to relax among the humidity.