When summer hits the Garden State, there’s no better way to cool off than diving into one of New Jersey’s beautiful, family-friendly swimming lakes. Often nestled within the scenic grounds of the state’s pristine parks, these lakes offer more than just a refreshing dip — they serve up full-on summer adventures.
From the wooded shores of Cheesequake State Park to the panoramic mountain views of High Point, New Jersey’s lakes provide some of the best freshwater swimming spots in the entire Northeast. Whether you’re looking for a peaceful nature retreat or a thrill-filled afternoon with the kids, there’s a swimming lake in New Jersey that fits the bill.
Why Swim in a Lake This Summer?
Unlike crowded beach boardwalks or chlorine-filled pools, New Jersey’s lakes deliver something special: a natural setting with calm waters, fresh air, and plenty of space to spread out. Many are located within state parks that are open to the public, making them an affordable and accessible option for families, couples, and solo adventurers alike.
Top Swimming Lakes in New Jersey to Explore
Here are some of the standout lakes that deserve a spot on your summer itinerary:
Cheesequake State Park – Middlesex County
Cheesequake Lake blends saltwater marshland and hardwood forest, creating a one-of-a-kind ecosystem that’s as fascinating as it is beautiful. The designated swimming area is open during the summer season, with lifeguards on duty and a sandy beach perfect for sunbathing or building sandcastles. After your swim, hit the trails to explore the park’s unique terrain.
Sunrise Lake – Lewis Morris County Park, Morristown
Sunrise Lake turns a typical beach day into a splash-filled adventure. This popular lake features an incredible floating inflatable water park — think bounce houses, slides, and climbing walls right on the water! It’s a favorite for families with energetic kids, but also offers paddle boat rentals, a sandy beach, and plenty of shaded picnic areas for relaxing breaks between swims.
High Point State Park – Sussex County
Want to swim with a view? Lake Marcia at High Point State Park sits at the highest elevation in New Jersey. It’s surrounded by rolling hills and dense forests, offering some of the most breathtaking natural scenery in the state. The cool, clear waters are perfect for a dip on a hot day, and the surrounding park includes hiking trails that lead to panoramic lookouts where you can see across three states.
Hooks Creek Lake – Cheesequake State Park
This hidden gem is ideal for those who want a more laid-back, nature-focused day. Shallow and family-friendly, Hooks Creek Lake also gives visitors access to nature trails, fishing spots, and wildlife observation areas. Pack your binoculars—you may spot egrets, turtles, or deer during your visit.
Lake Hopatcong – Morris and Sussex Counties
As the largest freshwater body in New Jersey, Lake Hopatcong is a go-to destination for both relaxation and recreation. While swimming access varies by location, many public areas and marinas allow for a dip. Plus, with boat rentals, waterfront restaurants, and year-round events, it’s easy to turn your swim into a full-day getaway.
More Than Just Swimming
One of the best parts about New Jersey’s swimming lakes is that they’re often part of expansive state parks that offer a full menu of outdoor fun. After you cool off in the water, you can:
- Hike miles of forested trails
- Picnic under shaded pavilions
- Rent kayaks or paddleboards
- Explore nature centers and historic sites
- Camp overnight and fall asleep to the sounds of the wild
These parks are designed for exploration and enjoyment, making them perfect for day trips, weekend escapes, or staycations close to home.
Plan Your Visit
Many of New Jersey’s public swimming lakes are open seasonally, typically from Memorial Day through Labor Day. Some require entrance or parking fees, especially on weekends and holidays, so be sure to check park websites before you go. Early arrival is recommended on hot days—these spots are popular for a reason!
Final Splash: Experience Summer the Jersey Way
Whether you’re floating on a tube at Lake Marcia, racing your kids across an inflatable obstacle course at Sunrise Lake, or hiking to a hidden swimming hole after a long morning on the trail, New Jersey’s lakes offer something for everyone. These natural swimming spots deliver more than a break from the heat—they’re a chance to connect with nature, make memories, and rediscover the beauty in your own backyard.
So, pack the sunscreen, grab your swimsuit, and plan your perfect lake day. This summer, let New Jersey surprise you with how refreshing the outdoors can be.