Greenwood Lake

New Jersey · Northeast · USA

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Water Temp74°F
ClarityClear
DifficultyEasy
Entry$10 per vehicle
Best TimeJune through September
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Can you swim at Greenwood Lake? Yes. Public swimming – lifeguards on duty in season · sandy beach · entry fee: $10 per vehicle · best June through September.

Swimming Guide

What to expect at Greenwood Lake

YesPublic swimming
74°FSummer water
June through SeptemberBest months
ClearWater clarity
LakeWater type
CalmCalmness
2 sandy beachesSandy beaches
Yes - seasonalLifeguards
YesPiers & docks
Dedicated parking for 150+ vehicles at…Parking
$10 per vehicleCost
SuburbanLocation

About Greenwood Lake

Greenwood Lake straddles the New Jersey-New York border and offers swimmers a picturesque alpine setting surrounded by rolling hills and dense forests. This scenic 1,850-acre lake combines natural beauty with excellent water quality, making it a favorite destination for families and serious swimmers alike. The pristine surroundings create a peaceful atmosphere ideal for leisurely swims and water activities. The lake's long shoreline provides diverse entry points and swimming areas, each offering unique perspectives of the forested landscape. Greenwood Lake Marina operates year-round facilities that enhance the visitor experience significantly. The water's moderate clarity and calm conditions create an inviting environment for swimmers of all levels. What makes this lake special is its balance of accessibility and natural charm-it feels secluded yet remains conveniently located for northeastern visitors. Practical tip one: arrive early on weekends to secure good parking and avoid crowds at popular swimming areas. Practical tip two: bring a wetsuit during shoulder seasons as water temperatures can be surprisingly cool even in late spring.

About This Lake

Swimming Conditions

Greenwood Lake maintains clear to moderate water clarity throughout the swimming season, with visibility typically ranging from 10 to 20 feet in optimal conditions. Water temperatures average around 74 degrees Fahrenheit during summer months, warming gradually from June through August before cooling in September and October. The lake depth varies significantly, with shallow sandy areas near popular beaches gradually transitioning to depths exceeding 100 feet in central regions. The best swimming spots include designated beach areas maintained by the marina and the main shoreline access points where sandy bottoms provide secure footing. Lake conditions remain generally calm with minimal currents, though afternoon winds can occasionally create gentle wave action. Seasonal lifeguard presence provides oversight during peak summer months, typically from Memorial Day through Labor Day. Safety considerations include wearing appropriate flotation devices if venturing into deeper waters and being aware of occasional recreational boating traffic. Always swim in designated areas and check weather conditions before entering the water.

Visitor Information

Greenwood Lake is approximately 45 miles northwest of New York City, accessible via Interstate 287 and local roads in about 90 minutes. Ample parking facilities accommodate visitors, with the marina offering dedicated parking areas for day-use swimmers. Restroom facilities, changing areas, and picnic tables are available throughout the recreation areas surrounding the lake. Food services and concessions operate at the marina during peak season, though nearby towns like Greenwood Lake village offer restaurants and casual dining options. Accommodations range from waterfront hotels to vacation rentals scattered around the lake perimeter, with additional options in nearby New York. The lake enjoys a moderate climate suitable for swimming from late May through early October, with peak season running June through August. Best times to visit include weekdays during summer when crowds are smaller and parking is more readily available. Arrive early morning for optimal water conditions and a more tranquil experience before afternoon activity increases.

Things to Do

Beyond the swim

SwimmingKayaking & CanoeingPaddleboardingFishingBoating & WaterskiingHiking TrailsPicnic Areas
Alpine lake settingClear waterFamily friendlySandy beachesMountain views

Plan Your Visit

A day trip or a full weekend at Greenwood Lake

A Perfect Summer Day at Greenwood Lake

Arrive by 9 AM to secure optimal parking at Greenwood Lake Marina and beat the weekend crowds. Start with an invigorating morning swim in the calm waters, taking advantage of the coolest temperatures and clearest visibility. Explore the sandy beach areas and enjoy breakfast from the marina concessions. Mid-morning, relax on the shoreline and observe the beautiful forested hills reflecting in the water. Lunch at a nearby village restaurant offers a nice break before an afternoon paddleboard or kayak adventure around the lake perimeter. Late afternoon swimming provides the warmest water temperatures of the day. Finish your visit with a sunset view from one of the scenic overlook areas before heading home around 6 PM. This balanced itinerary combines active water activities with peaceful relaxation in a beautiful natural setting.

◆Early morning swim in crystal clear water
◆Scenic shoreline and mountain views
◆Waterfront dining and refreshments
Pack your lunch or purchase from marina concessions to maximize water time and save money. Bring binoculars for wildlife spotting along the forested shoreline, including various bird species and occasionally deer.

Scenic Alpine Lake Weekend Escape

Day 1

Arrive Friday evening and settle into your accommodation. Enjoy a sunset dinner at a waterfront restaurant to experience the lake at golden hour. Take an evening stroll along the shoreline to acclimate to the area. Saturday begins with an early morning swim as the water is typically calmest and clearest. Spend mid-morning exploring the beach areas and perhaps renting kayaks for a leisurely paddle. Enjoy a picnic lunch at one of the lakeside areas. Afternoon activities might include paddleboarding, fishing, or simply relaxing on the beach with a book. Return for dinner at a local restaurant.

☾ Overnight: Greenwood Lake village or nearby New York area accommodations including lakefront hotels and vacation rentals

Day 2

Sunday morning offers another excellent swimming opportunity before most crowds arrive. Enjoy a leisurely breakfast at a local cafe. Spend late morning hiking one of the forest trails surrounding the lake for stunning vistas and wildlife viewing opportunities. Have a final swim around midday before packing up. Stop at a local shop to purchase souvenirs or snacks for the drive home. Depart early afternoon to avoid return traffic congestion.

Book accommodations in advance during summer months as popular lakefront properties fill quickly. Consider visiting in June or September for fewer crowds, slightly lower water temperatures, and more peaceful hiking trails.

Getting There

41.1621, -74.3058

What to Bring

sunscreentowelwater shoeslife jacketsnackscamerainsect repellentwaterproof phone case

Frequently Asked Questions

Is Greenwood Lake safe for swimming?

Yes, Greenwood Lake is generally safe for swimming with clear water and calm conditions. Seasonal lifeguards provide oversight during peak summer months from Memorial Day through Labor Day. Always swim in designated areas and check weather conditions before entering the water.

What is the best time to swim at Greenwood Lake?

The best swimming season runs from June through September when water temperatures average 74 degrees Fahrenheit. Early morning hours offer the calmest conditions and clearest visibility. June and September provide excellent swimming with fewer crowds than peak July-August season.

Is there an entry fee at Greenwood Lake?

Yes, Greenwood Lake charges a $10 per vehicle entry fee for day-use access through the marina facilities. This fee provides parking, restroom access, and use of picnic areas. Additional amenities and concessions may have separate charges.

What facilities are available at Greenwood Lake?

Greenwood Lake Marina offers ample parking, restroom facilities, changing areas, picnic tables, and concessions. Sandy beaches provide natural swimming areas, and boat rentals for kayaking and paddleboarding are available. Nearby village areas offer restaurants and additional services.

Can you camp near Greenwood Lake?

Direct camping on the lake is limited, but several campgrounds and vacation rentals operate in the surrounding area. Nearby towns offer hotel accommodations and vacation home rentals with easy lake access. Contact the marina or local visitor information for current camping and lodging options.

📋 Sources & updates

Compiled from official park, state and lake-authority information.
Last checked 20 October 2026 · Conditions, fees and opening dates change – check with the lake manager before you go. Found something out of date? Send a correction.
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Researched by the Swimming Lakes team

Our guides are compiled from official park, state and lake-authority sources, then checked and updated regularly. Spot something out of date? Send us a correction.

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