Did you know that Jefferson County is home to over 1,800 islands that make up the breathtaking Thousand Islands region? This stunning archipelago, where the St. Lawrence River meets Lake Ontario, is just one of the many natural wonders that make this corner of New York State a hidden gem for travelers seeking authentic experiences away from crowded tourist destinations.
The stunning Thousand Islands region in Jefferson County offers breathtaking views and endless exploration opportunities
Getting to Jefferson County
Jefferson County is conveniently located in northern New York State, making it accessible by various transportation methods. The Watertown International Airport offers daily flights to Philadelphia, connecting you to destinations worldwide with just one stop. For those who prefer driving, Interstate 81 runs directly through the county, providing easy access from major cities.
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By Air
- Watertown International Airport (ART) – Daily flights to Philadelphia
- Syracuse Hancock International Airport (SYR) – 70 miles south of Watertown
By Car
- Interstate 81 runs north-south through Jefferson County
- From NYC: Approximately 5.5 hours (320 miles)
- From Buffalo: Approximately 3 hours (175 miles)
- From Albany: Approximately 3 hours (160 miles)
Jefferson County welcomes visitors with scenic drives and beautiful landscapes
Best Time to Visit Jefferson County
Jefferson County experiences four distinct seasons, each offering unique attractions and activities. Your ideal visiting time depends on what experiences you’re seeking.
| Season | Weather | Best For | Special Events |
| Summer (June-August) | 70-85°F, occasional thunderstorms | Boating, swimming, fishing, outdoor festivals | Watertown Farm & Craft Market, Sackets Harbor Concerts |
| Fall (September-November) | 45-70°F, crisp and cool | Foliage tours, hiking, wine tasting | Harvest festivals, Madison Barracks Ghost Tours |
| Winter (December-February) | 10-30°F, significant snowfall | Skiing, snowmobiling, ice fishing | Watertown Wolves Hockey, Dry Hill skiing |
| Spring (March-May) | 40-65°F, occasional rain | Whitewater rafting, bird watching, hiking | Black River whitewater derby, Spring farm tours |
Local Tip: Summer is peak tourist season in the Thousand Islands region. For fewer crowds but still pleasant weather, consider visiting in early June or September when you can enjoy most attractions with more space to yourself.
Top Attractions in Jefferson County
Jefferson County offers a diverse range of attractions from natural wonders to historical sites. Here are the must-visit places that should be on every traveler’s itinerary.
Boldt Castle on Heart Island
This magnificent castle was built by George Boldt as a testament of his love for his wife. Today, visitors can tour the 120-room castle and its beautiful grounds. The castle features stunning architecture, elaborate gardens, and a fascinating history that makes it one of the region’s most popular attractions.
Open: May to October | Admission: $10-15 per person
Thousand Islands Boat Tours
Experience the beauty of the Thousand Islands region from the water. These guided boat tours take you through the maze of islands, pointing out historic sites, luxurious homes, and sharing fascinating stories about the area’s rich history. Many tours include stops at attractions like Boldt Castle or Singer Castle.
Tours depart from Alexandria Bay, Clayton, and Sackets Harbor | Duration: 1-3 hours
Thompson Park & Zoo New York
This historic Olmsted-designed park offers scenic views, walking trails, playgrounds, and recreational facilities. The park is also home to Zoo New York, which showcases native animals in naturalistic habitats. With its beautiful landscapes and family-friendly attractions, Thompson Park is perfect for a relaxing day outdoors.
Park: Open daily, dawn to dusk | Zoo: 10am-4pm (seasonal hours vary)
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Outdoor Adventures in Jefferson County
With its abundant waterways, forests, and open spaces, Jefferson County is a paradise for outdoor enthusiasts. Here are some of the best outdoor activities to enjoy during your visit.
Experience the thrill of whitewater rafting on the Black River rapids
Water Activities
- Fishing in Lake Ontario and St. Lawrence River
- Whitewater rafting on the Black River
- Kayaking and canoeing through the Thousand Islands
- Swimming at public beaches
- Sailing and boating excursions
Land Adventures
- Hiking the Black River Trail
- Cycling on the Watertown Riverwalk
- Camping at Westcott Beach State Park
- Golfing at one of several scenic courses
- Bird watching at Perch River Wildlife Management Area
Winter Activities
- Skiing and tubing at Dry Hill Ski Area
- Snowmobiling on over 300 miles of trails
- Ice fishing on frozen lakes
- Cross-country skiing in state parks
- Ice skating at the Watertown Municipal Arena
Adventure Tip: For the best whitewater rafting experience on the Black River, visit during spring when water levels are highest. Local outfitters provide all necessary equipment and safety gear for both beginners and experienced rafters.
Explore Jefferson County Your Way
Rent a car to discover all the hidden gems Jefferson County has to offer!
Historical Sites and Museums
Jefferson County’s rich history is preserved in its many museums and historical sites. From military history to cultural heritage, these attractions offer fascinating glimpses into the past.
Sackets Harbor Battlefield State Historic Site preserves the area’s important military history
Sackets Harbor Battlefield State Historic Site
This well-preserved battlefield was the site of two crucial battles during the War of 1812. Today, visitors can tour the grounds, visit the Commandant’s House, and learn about the area’s military significance through interpretive displays and reenactments during special events.
The site offers guided tours that bring history to life, explaining how this small harbor village became a major naval and military center during the early 19th century.
Jefferson County Historical Society
Housed in a beautiful mansion built by one of the area’s earliest settlers, this museum showcases artifacts and exhibits that tell the story of Jefferson County’s development. The collection includes furniture, clothing, photographs, and documents that provide insights into local life throughout the centuries.
The society also maintains a research library with extensive genealogical resources for those interested in tracing their family history in the region.
Paddock Arcade
Visit America’s oldest continuously operating enclosed shopping mall, built in 1850. This historic arcade in downtown Watertown features beautiful Victorian architecture with a glass roof and ornate details. While shopping, you can appreciate the preserved 19th-century design that makes this a unique historical landmark.
Flower Memorial Library
This architectural gem was donated to Watertown in 1904 and has been recently restored to its original beauty. The library features stunning stained glass, marble staircases, and intricate woodwork. Beyond its collections, the building itself is worth visiting for its historical significance and craftsmanship.
The historic Paddock Arcade is America’s oldest continuously operating enclosed shopping mall
Where to Eat in Jefferson County
Jefferson County’s culinary scene offers everything from waterfront fine dining to casual local favorites. Fresh seafood, farm-to-table ingredients, and regional specialties make dining here a delightful experience.
Enjoy fresh seafood and stunning views at waterfront restaurants in Jefferson County
Waterfront Dining
- The Boathouse in Sackets Harbor – Seafood with harbor views
- Riverside Café in Clayton – Casual dining along the St. Lawrence
- Channelside Restaurant in Alexandria Bay – Upscale dining with island views
Local Favorites
- Boak’s Tavern in Watertown – Historic pub with comfort food
- Art’s Jug in Watertown – Family-owned Italian restaurant
- Sboro’s Restaurant in Watertown – Classic American cuisine
Sweet Treats
- Lickety Split in Clayton – Homemade ice cream
- Reinman’s Department Store in Adams – Old-fashioned soda fountain
- The Scoop in Alexandria Bay – Ice cream and desserts
“The farm-to-table movement is thriving in Jefferson County, with many restaurants sourcing ingredients directly from local farms. Don’t miss the chance to taste truly fresh, seasonal dishes that showcase the region’s agricultural bounty.”
The Watertown Farm & Craft Market offers fresh local produce and artisanal foods
Where to Stay in Jefferson County
From historic inns to waterfront resorts, Jefferson County offers accommodations to suit every preference and budget. Here are some top options for your stay.
Waterfront hotels in the Thousand Islands region offer stunning views and easy access to activities
Luxury Options
- 1000 Islands Harbor Hotel – Clayton
- The Riveredge Resort – Alexandria Bay
- The Sackets Harbor Inn – Sackets Harbor
Mid-Range Accommodations
- Best Western Watertown – Watertown
- Hampton Inn Watertown – Watertown
- Bonnie Castle Resort – Alexandria Bay
Budget-Friendly Stays
- Microtel Inn & Suites – Calcium
- Swan Bay Resort (Camping) – Alexandria Bay
- Watertown Budget Inn – Watertown
Historic bed and breakfasts offer charming accommodations with local character
Find Your Perfect Stay in Jefferson County
Browse accommodations ranging from luxury waterfront resorts to cozy bed and breakfasts.
Practical Tips for Visiting Jefferson County
Make the most of your Jefferson County adventure with these helpful tips from locals and experienced travelers.
Getting Around
A rental car is highly recommended for exploring Jefferson County, as public transportation is limited. Major attractions are spread throughout the county, and having your own vehicle provides the freedom to discover hidden gems at your own pace.
If you’re staying in Watertown, some attractions are within walking distance, but you’ll need transportation to visit the Thousand Islands region and other outlying areas.
Weather Considerations
Jefferson County experiences all four seasons distinctly. Summers are warm and pleasant, perfect for water activities. Fall brings spectacular foliage. Winters are cold with significant snowfall, ideal for winter sports. Spring can be rainy but offers great conditions for whitewater rafting.
Always check the forecast before your trip and pack accordingly. Even summer evenings can be cool near the water, so bringing layers is recommended year-round.
Is Jefferson County family-friendly?
Absolutely! Jefferson County offers numerous family-friendly attractions including Zoo New York, Thompson Park’s playgrounds and splash pad, beaches, and educational museums. Many restaurants also cater to families with children’s menus and casual dining options.
Do I need a passport to visit the Thousand Islands?
You don’t need a passport to visit the American side of the Thousand Islands. However, if you plan to cross into Canada or take a boat tour that crosses the international border, you will need a passport or enhanced driver’s license.
What’s the best way to experience the Thousand Islands?
The most popular way to experience the Thousand Islands is by boat tour, which provides unique perspectives and access to island attractions. For a more intimate experience, consider renting a kayak or taking a guided kayaking tour to explore at your own pace.
A map of Jefferson County highlighting major attractions and towns
Plan Your Jefferson County Adventure
Jefferson County, New York offers a perfect blend of natural beauty, rich history, and outdoor adventure. From the magnificent Thousand Islands to historic battlefields, from thrilling whitewater rafting to peaceful nature trails, this region has something for every type of traveler.
Whether you’re planning a family vacation, a romantic getaway, or an outdoor adventure, Jefferson County’s diverse attractions and warm hospitality will make your visit memorable. The changing seasons bring new experiences throughout the year, so consider returning to experience this beautiful region in different lights.
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Experience unforgettable sunsets over the St. Lawrence River in Jefferson County
