2026 Block Party Vendor & Sponsor Registration Open

Booth sspaces are going fast! Sign up today to join us at Hopatcong State Park on May 16.

Lake Hopatcong Water Quality Report - Findings & Next Steps

Join us for a virtual presentation on the latest insights into Lake Hopatcong’s water quality.

Woman cleaning litter along the Musconetcong River

Spring Into Action with the Musconetcong River Cleanup

Join us in taking part in the Musconetcong Watershed Association's annual river cleanup.

Volunteer at the 2026 Lake Hopatcong Block Party!

Want to make an impact – and get the “best seat in the house” - at the Lake Hopatcong Block Party?

Repair, Reuse, Repeat: Roxbury Repair Café Returns

Repair Cafés are all about neighbors helping neighbors and making small choices that add up to a big impact.

The Lake Hopatcong Foundation works to foster a vibrant and healthy Lake Hopatcong and its surrounding community. We do this through a variety of programs and initiatives in the following areas: environment, education, community and advocacy.

Environment

The Lake Hopatcong Foundation has a strong focus on maintaining and improving the lake environment as the health of the lake affects all facets of the Lake Hopatcong experience. Programs center around improving water quality and invasive aquatic species prevention.

Education

The Foundation is committed to understanding Lake Hopatcong’s crucial role as an environmental resource and sharing that knowledge with future generations to ensure its protection and sustainability.

group of kayakers smiling for a picture as they float down Lake Hopatcong

Community

With four towns, two counties, and the state, all claiming at least some portion of Lake Hopatcong, the community can sometimes feel disjointed. One of the goals of the Lake Hopatcong Foundation is to build the sense of lake community, and to support the local businesses that surround it.

Advocacy

The Lake Hopatcong Foundation is a committed advocate for the protection, support, and funding of Lake Hopatcong, its watershed, and public lakes throughout the state.

Make a Difference

Join us in fostering a vibrant and healthy Lake Hopatcong and its surrounding community.

Donate Today

2026 Block Party Vendor & Sponsor Registration Open

Booth sspaces are going fast! Sign up today to join us at Hopatcong State Park on May 16.

Lake Hopatcong Water Quality Report - Findings & Next Steps

Join us for a virtual presentation on the latest insights into Lake Hopatcong’s water quality.

Spring Into Action with the Musconetcong River Cleanup

Join us in taking part in the Musconetcong Watershed Association's annual river cleanup.

Volunteer at the 2026 Lake Hopatcong Block Party!

Want to make an impact – and get the “best seat in the house” - at the Lake Hopatcong Block Party?

Repair, Reuse, Repeat: Roxbury Repair Café Returns

Repair Cafés are all about neighbors helping neighbors and making small choices that add up to a big impact.

The Lake Hopatcong Foundation works to foster a vibrant and healthy Lake Hopatcong and its surrounding community. We do this through a variety of programs and initiatives in the following areas: environment, education, community and advocacy.

Environment

Education

Community

Advocacy

Make a Difference

Join us in fostering a vibrant and healthy Lake Hopatcong and its surrounding community.

Get Involved

Make a Donation

Volunteer

Give a Tribute Gift

Recent Articles

Repair, Reuse, Repeat: Roxbury Repair Café Returns This Spring

Lake Hopatcong on Capitol Hill

A Message From Our Block Party Volunteer Coordinator

Upcoming Community Events

Hands-on Drone Training Course

Boating Safety Course & Exam

NJ Boating License Course and Exam

2026 Block Party Vendor & Sponsor Registration Open

Booth sspaces are going fast! Sign up today to join us at Hopatcong State Park on May 16.

Lake Hopatcong Water Quality Report - Findings & Next Steps

Join us for a virtual presentation on the latest insights into Lake Hopatcong’s water quality.

Spring Into Action with the Musconetcong River Cleanup

Join us in taking part in the Musconetcong Watershed Association's annual river cleanup.

Volunteer at the 2026 Lake Hopatcong Block Party!

Want to make an impact – and get the “best seat in the house” - at the Lake Hopatcong Block Party?

Repair, Reuse, Repeat: Roxbury Repair Café Returns

Repair Cafés are all about neighbors helping neighbors and making small choices that add up to a big impact.

The Lake Hopatcong Foundation works to foster a vibrant and healthy Lake Hopatcong and its surrounding community. We do this through a variety of programs and initiatives in the following areas: environment, education, community and advocacy.

Environment

Education

Community

Advocacy

Make a Difference

Join us in fostering a vibrant and healthy Lake Hopatcong and its surrounding community.

Get Involved

Make a Donation

Volunteer

Give a Tribute Gift

Recent Articles

Repair, Reuse, Repeat: Roxbury Repair Café Returns This Spring

Lake Hopatcong on Capitol Hill

A Message From Our Block Party Volunteer Coordinator

Upcoming Community Events

Hands-on Drone Training Course

Boating Safety Course & Exam

NJ Boating License Course and Exam

E-News Signup