The Boathouse at Mercer Lake is a newly renovated lakefront event space at Mercer County Park in West Windsor, NJ. Overlooking lush park greenery and a picturesque lake, this event space has two rooms to hold your wedding or social event in. The main ballroom at Boathouse, Lakeside Hall is an airy space with high-arching ceilings, perfect for dinner and dancing for up to 250 guests. The park at Mercer Lake offers incredible lakeside views and a unique tree lined jetty with a newly restored gazebo. This outdoor area is perfect for your ceremony and exchanging vows. Incredible elevated views of Mercer Lake form our backyard deck that runs the entire length of the building. Partially covered to protect from sun or the occasional spot of rain. Perfect for pre-ceremony or post corporate meeting cocktail hour.