New York / Cayuga Lake /

Allan H. Treman State Marine Park

Boat ramp · on Cayuga Lake · near Ithaca · New York

Algal bloom: confirmed

NYS DEC lists a confirmed harmful algal bloom on Cayuga Lake 1.8 km from this launch (October 14, 2026). Extent: Large Localized. Avoid contact with discoloured water or scum, and keep pets and children out of it.

NYS DEC · checked October 18, 2026

Invasive species

NYS DEC records quagga mussels (latest 2012), zebra mussels (latest 2012), brittle naiad (latest 2025), curly-leaf pondweed (latest 2025), Eurasian watermilfoil (latest 2025), flowering rush (latest 2025), hydrilla (latest 2022), round gobies (latest 2023), starry stonewort (latest 2025) and water chestnut (latest 2025) in the water at this launch. Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

NYS DEC · checked October 18, 2026

Status not reported No closure has been posted for this launch, but its agency does not publish open or closed status. Check with the managing agency before you tow.

At the launch

Type
Boat ramp
Car parking
140
Managed by
New York State Parks
Website
dec.ny.gov
Coordinates
42.45652, -76.51248

Directions (Google) Apple Maps

Conditions

Lake level

Latest reading loads here; without it, see the USGS page below.

USGS gauge CAYUGA INLET (CAYUGA LAKE) AT ITHACA NY, 0.7 mi from this launch on Cayuga Lake: lake level, a reading every 15 minutes. Readings and history at USGS.

On Cayuga Lake

Lake in New York. All launches on Cayuga Lake.

Community

Where people who use Cayuga Lake talk about it.

Nearby launches

Sources

Why it is listed as public: listed by New York State DEC Boat Launch Sites and New York State Parks Boat Launch Sites (OPRHP). Something wrong, or is this launch private? Send a correction; it goes to a person.