Columbia, Maryland is a planned community located in Howard County. The city has a humid subtropical climate with hot summers and mild winters. The hydrology constituents include the Patuxent River and Lake Kittamaqundi. Columbia offers numerous outdoor recreation opportunities, including hiking and bicycling on the city's extensive trail network, kayaking and fishing on the Patuxent River, and swimming and boating at the various lakes located throughout the community. The city also has several parks and playgrounds, as well as an outdoor amphitheater that hosts concerts and events throughout the year. Overall, Columbia provides a variety of outdoor activities for visitors and residents to enjoy.