The park's namesake, Allan Hosie Treman (1899-1975) was a Cornell University law professor, Ithaca city counsel, and member of the Finger Lakes Park Commission.

[4] He is the son of Robert H. Treman, who also has a state park named in his honor.

Allan H. Treman State Marine Park offers an eight-lane boat launch and a marina that includes 370 seasonal, 30 transient and 30 dry boat slips.

Boats launched at the facility have easy access to the New York State Canal System.

Fishing, birdwatching opportunities (waterfowl and wetland species), and picnic tables are also available at the park.