• The Mercer County Marina on Mercer Lake: Amenities consist of a beautiful lakeside boathouse, a FREE boat ramp for launching small boats, 1,000 square feet of docks and offers kayak, row and pedal boat rentals.
  
• Boathouse Rental and Catering at Mercer County Park: Offering beautiful panoramic views of Mercer Lake, the Boathouse is available for catered events and comfortably seats up to 80 people. Just outside the facility, the Marina offers three lakefront pavilions for a true one-of-a kind setting. Covered outside seating for up to 150 people is now available under a new 30' x 80' permanent pavilion. For more information on catered events at the Boathouse, inside or out, please contact D & D Catering at (609) 586-0883.
  
• Finn Casperson Rowing Center: Named for Finn M.W. Caspersen, former Board Chair of the Peddie School and located on the North shore, the original boathouse project was built to provide a better venue for local scholastic rowing programs. Though privately funded, the project was a joint effort between The Peddie School, The Lawrenceville School, and Mercer County officials. The Center is home to the Princeton National Rowing Association, www.rowpnra.org, whose mission combines youth and masters programs with elite rowing and international racing, allowing athletes of all skill levels and ages to train, improve and achieve together.  The site is designated as a United States Olympic Training Site and serves as the training venue for the US National and Olympic Rowing Teams. Click here to view the race course. Maritime rules require boats under mechanical power to yield to human powered boats.  
• Surrounding the marina is a recreational area consisting of picnic tables, a 5-mile bike trail, playgrounds, grills and 4 new sand volleyball courts.

• The marina boat ramp is open for public use seven days a week sunrise to sunset weather permitting. No gasoline engines permitted. Electric motors only.
  
• Pedal boats, rowboats and kayaks may be rented Memorial Day through Labor Day. Pedal and Rowboats hold a maximum of four people. Kayaks are single-person and double person capacity.
  
• There are parking facilities for 500 cars and an area for boat trailer parking.
  
• Boating for canoes, small sail boats, pedal boats, row boats, coast guard approved inflatable and kayaks are allowed on the lake.  You must wear a life jacket at all times.
  
• Fishing permitted. Must be 15 years and older (or accompanied by an adult) and must have a valid fishing license.
  
• Picnic outings and biking trails. Three beach volley ball courts
  
• Barrier free Lakeside Village Playground.
  
• The Finn M.W. Caspersen Rowing Center located in Mercer Park is the U.S. Olympic Training Site for Rowing and the only Olympic Training Site in the Mid-Atlantic states. The Olympic, Senior, Under-23 and Junior National Teams all train and/or are selected on Mercer Lake.
  
• Mercer Lake has hosted major rowing competitions including five U.S. Olympic Rowing Team Trials, FISA World Master Rowing Championships, NCAA Women’s Rowing Championships, Scholastic Rowing Association of America Championships and the Big East and Metro-Area Athletic Conference (MAAC) Collegiate Championships. The Mercer Lake Sprints in among the five largest Junior Regattas in the United States.
  
• Princeton National Rowing Association (PNRA), through the Mercer Rowing Program (MJRC), provides opportunities for students from over 30 Mercer County area schools to excel in competitive rowing.
  
• PNRA provides opportunities for inner city youth from Trenton to experience the sport of rowing.
  
• The Hun School, Lawrenceville School and Peddie School rowing programs all call Mercer Lake home.
  
• For information on rowing programs contact PNRA at www.rowpnra.org
  
• Interesting Facts - Women that train on Mercer Lake won the Olympic Gold Medals in the Women’s 8+ in 2008 Beijing and 2012 London and a Silver in Athens.  They have also won 7 straight World Championships. The Women’s 4x won the Bronze in the 2012 London Games.
  
• Since 2001, every US Olympic or National Team Rowing athlete has trained or been through a selection race on Mercer Lake.

• Marina phone number (609) 448-4004
  
• Weekends & holidays May 25 to June 9 from noon to 6:00 PM
  
• June 12 to Sept 2 (Labor Day) Wed thru Fri noon to 5:00 PM. Sat and Sun noon to 6:00 PM. Boat Rental is Closed on Mondays and Tuesdays
  
• All rentals are weather permitting
  
• We rent rowboats and pedal boats with a max capacity of 4 people.
  
• Kayaks are single person and double person capacity.
  
• Cost for pedal/row boats & single person kayaks is $15.00 per hour. Two person kayaks are $20 per hour. Driver license/ID Required.
  
• After the hour the cost is $5.00 per every half hour or less of use.
  
• You must be at least 17 years old to rent a boat.
  
• Fishing is permitted from row boats only.
  
• Pontoon boat 50-minute lake tour given on Saturdays and Sundays, starting Memorial Day through Labor Day. Tours begin at 1:00 PM, 3:00 PM, and 5:00 PM
  
• Pontoon boat rides are on a first come first serve base with a 15 person capacity.
  
• Prices: Adults (12 and older) $7, Children (11 and under) $5, Seniors (62 and older) $5
  
• All tours are weather permitting.
  
• Everyone in the boat must wear a life vest at all times.
  
• No standing in the boats or swimming in the lake at any time.
  
• Stop by our new snack bar located on the ground level facing the Marina. Cold drinks, hot dogs, ice cream and more!
  
• New rest room facilities have been added on the ground level facing the Marina
  
• New docks to accommodate rental boats and public launch ramp
  
• Two person kayaks now available for rental.
  
• Aquatic Adventure Camp. A weeklong camp exploring Mercer Lake with our County Naturalist. Contact Jrogers@mercercounty.org for more information.
  
• Guided Pontoon boat nature tours with county naturalist contact Jrogers@mercercounty.org for more information or visit our event keeper schedule for tour dates. All nature tours are sold on a first come first serve base. Tickets sold the day of the tour at the marina rental office. All tour dates are weather permitting with a 15 person capacity. Prices: Adults (12 and older) $10, Children (11 and under) $5, Seniors (62 and older) $5.
  
• Children must be at least five years of age for the nature tours.

• Mercer Lake was constructed at no cost to taxpayers because the fill was used to construct Interstate 295.
  
• In 1975, the 365 acre lake started with the construction of a dam by the US Department of Agriculture Soil Conservation Service known now as Natural Resources Conservation Service.
  
• The dam was built to control flooding in certain sections of the city of Trenton by the Assunpink Creek.
  
• This project turned a marsh into a man made lake for boating and fishing which led to the development of the boathouse and marina.

• No gasoline motors of any kind except for official use.
  Motors are limited to 12-volt electric trolling type.
• A person shall not launch any watercraft without a U.S. Coast Guard approved flotation device for each occupant. All under the age of 13 years must wear a PFD at all times while on the water.
• No persons shall launch rafts, tubes, houseboats, propeller type airboats, hydroplanes, aquaplanes, surfboards, windsurfers or paddle boards at any time on Mercer Lake.
• Swimming is prohibited unless written consent is given by The Mercer County Park Commission.
• No inflatable boats except those approved by the U.S. Coast Guard with visible seal.
• No persons shall load any watercraft with passengers or cargo beyond its safe occupancy capacity.
• No persons shall operate watercraft in a reckless manner.
• No persons shall moor watercraft overnight.
• No persons shall launch, dock or remove any watercraft in any area except designated launching areas.
• No watercraft shall be operated during any part of the period between one-half hour after sunset and one-half hour before sunrise except by special permit.
• Any Park Commission employee or Park Ranger shall have the authority to order termination of the use of a boat because of unsafe conditions (overloaded boats, insufficient or improper PFD’s, under aged not wearing PFD, neglectful operation, operating under the influence, weather conditions or actions deemed unsafe).
• No sailing vessel will be permitted to sail if height from water line to tip of mast exceeds 22feet.

Violators shall be subject to a $100 fine for each violation. Resolution 755, dated October 29th 1980.

Lake Conditions (sunrise to sunset)