Summer is here, and the Hopatcong-Sparta area is packed with ways to enjoy the season. From outdoor gatherings and local markets to community festivals and family-friendly events, there's plenty happening close to home.
Below are some events and activities to add to your calendar. Before you head out, it's always a good idea to confirm hours, weather plans and ticket details with event organizers.
When: Saturday, July 11, 2026, 11 a.m.–1:30 p.m.
Where: Various locations on Lake Hopatcong
The Lake Hopatcong community will mark America’s 250th birthday with a celebration on New Jersey’s largest lake. The day includes a boat parade, an all-fleet sail and a paddler flotilla, giving residents and visitors several ways to take part from the water or shoreline.
More info: lakehopatcongfoundation.org
When: Sunday, July 26 and Sunday, August 30, 2026, 11 a.m.–3 p.m.
Where: Hopatcong DPW Lot | 120 River Styx Road, Hopatcong
The Hopatcong Monthly Market brings local vendors, makers, crafters and food options together on the last Sunday of the month. It’s an easy way to shop small, pick up seasonal finds and spend a summer afternoon close to home.
More info: jjvendorevents.square.site
When: Mondays, July 6 through August 31, 2026, 11 a.m.–12:30 p.m.
Where: Hopatcong State Park
Lake Hopatcong Foundation’s Eco Cruise offers a guided way to get out on the water while learning more about the lake’s environment, history and natural surroundings. Cruises are scheduled weekly throughout much of July and August.
More info: lakehopatcongfoundation.org
When: Saturday, August 8, 2026
Where: Lake Forest Yacht Club | 35 Yacht Club Drive, Lake Hopatcong
Jersey Wakeoff brings wakeboarding action to Lake Hopatcong, with riders competing and spectators gathering along the lakefront. The event is a lively summer outing for anyone who wants to watch the sport up close.
More info: wakeoff.com
When: Thursday, August 13, 2026, 6:30–8:30 p.m.
Where: The Windlass area on Lake Hopatcong
Classic boat enthusiasts can catch a summer cruise night on Lake Hopatcong, where antique and classic boats gather on the water. It’s a relaxed evening option for anyone who enjoys lake history, vintage boats and a scenic summer setting.
More info: lakehopatcongfoundation.org
When: July 31 through August 8, 2026
Where: Sussex County Fairgrounds | 37 Plains Road, Augusta
A short drive from the Hopatcong-Sparta area, the New Jersey State Fair offers a full summer lineup of rides, food, animals, agricultural exhibits, entertainment and family-friendly attractions. Fair hours vary by day, so check the schedule before heading out.
More info: sussexcountyfairgrounds.org
Looking for more things to do in Hopatcong-Sparta this summer? Check out the Patch events calendar for more local events and activities.
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