De Leon Springs State Park, Natural spring state park in DeLeon Springs, Florida, US.

De Leon Springs State Park is a 625-acre state park in Volusia County, Florida, centered on a second-magnitude spring that flows at about 20 million gallons a day. The spring pool stays at 22 °C (72 °F) year-round and reaches 9.1 meters (30 feet) deep at the boil. Near the entrance, a cream-colored stucco wall with a gray shingled cap carries the park sign in raised dark letters beside a white gate pillar marked 601.

People have lived in this area for thousands of years, as shown by discoveries of ancient canoes found underwater. These finds reveal how long the spring has served as an important location for communities.

The area was renamed Ponce de Leon Springs from Spring Garden after the Jacksonville, Tampa, Key West Railway arrived in 1886, a change made to draw tourists. In the 1880s the springs were advertised as a winter resort with alleged healing powers and called the Fountain of Youth. The native people the Spanish met here were the Mayaca, fisher-hunter-gatherers who differed from the Timucua.

The park is open daily and offers swimming, hiking, and boating opportunities throughout the grounds. Visitors should prepare for sunny weather and consider wearing water shoes, as the sandy bottom can be rough underfoot.

The Old Spanish Sugar Mill Restaurant opened in 1961 after the Schwarze family renovated the mill building, and it has operated continuously since. Guests cook pancakes on griddles set into their own tables. The mill itself was first built by Colonel Orlando Rees, who owned the plantation from 1830 and ran Florida's only water-powered sugar mill.