Parks, Recreation and Historic Preservation

Press Release

July 10, 2024

Lake Welch Beach Closed for Treatment of Harmful Algal Bloom

Visitors should seek alternate parks for swimming and picnicking 

The New York State Office of Parks, Recreation and Historic Preservation and the Palisades Interstate Park Commission announced that the Lake Welch Beach and Picnic Grounds in Harriman State Park will be closed through Sunday due to a Harmful Algal Bloom (HAB) that has affected Lake Welch. Visitors should seek alternate locations for swimming and picnicking. 

An algaecide is being applied to Lake Welch to provide targeted treatment and minimize the spread of the bloom. Conditions will be reassessed next week to determine when the beach can reopen. The HAB at Lake Welch was first observed on Tuesday, July 9.

Updates on swimming conditions at Lake Welch will be posted on the website https://parks.ny.gov/parks/lakewelch/details.aspx as well as the mobile app.

Visitors heading to Lake Welch should consider alternate destinations in Harriman State Park or visiting other state parks. A list of swimming options throughout the Hudson Valley and beyond is available at https://parks.ny.gov/recreation/swimming/.

HABs typically occur in areas with calm water, higher levels of nutrients, and warm weather, but the exact causes of HABs are unknown and can vary greatly. Exposure to algae blooms can cause health effects in people and animals when water with blooms are touched, swallowed, or when airborne droplets are inhaled. Exposure to high levels of algae and their toxins can cause diarrhea, nausea or vomiting; skin, eye or throat irritation; and allergic reactions or breathing difficulties. Recreational exposures can occur while swimming, wading, fishing, or boating in areas with HABs.

The New York State Office of Parks, Recreation and Historic Preservation oversees more than 250 parks, historic sites, recreational trails, golf courses, boat launches and more, which saw a record 84 million visits in 2023. For more information on any of these recreation areas, visit parks.ny.gov, download the free NY State Parks Explorer app or call 518.474.0456. Join us in celebrating our Centennial throughout 2024, and connect with us on FacebookInstagramX (formerly Twitter), and the OPRHP Blog