Lake Eucha State Park is a 31-acre (13 ha) Oklahoma state park located in Delaware County, Oklahoma. It is owned and managed by the city of Tulsa, and the closest town is Jay, Oklahoma. The park was previously known as Upper Spavinaw State Park. There have been parks, state and otherwise, around the lake since at least 1938; the oldest lease clearly applying to this park was started in 1967.
Oddly enough, while the park includes the name "Lake" in its name, it is in fact not on the shore of Lake Eucha, and is in fact fenced off from the lake.
Lake Eucha State Park is a 31-acre (130,000 m2) day-use picnic area with a swimming pool. It is unique in that it is the only state park where groups or families may reserve the entire park and pool. The park may be rented for 24 hours. Lake Eucha State Park offers a large swimming pool with shelter, a barbecue area and poolside tables and chairs. The park area has an additional shelter with 55 picnic tables, as well as hiking trails and comfort stations.
During March 2011, the Oklahoma Tourism and Recreation Department announced that it would close seven parks, including Lake Eucha State Park because of reductions in the departmental budget. But the park was not closed and its management was taken over by the City of Tulsa.