Austin, Texas is the state capital of Texas, located in the central region of the state. The city has a humid subtropical climate, with hot summers and mild winters. The climate is influenced by its location on the edge of the Hill Country, which provides ample opportunities for outdoor recreation activities such as hiking, biking, and swimming. The city is also situated on the Colorado River, which provides a source of hydrology and a popular destination for water sports such as kayaking and fishing. However, Austin's water quality has been impacted by pollutants such as phosphorus and nitrogen, which have contributed to harmful algal blooms in the city's waterways. Despite these challenges, Austin remains a vibrant city with a plethora of outdoor activities and opportunities for adventure.