Watershed Solstice Trail Run

June 20, 2024

Register or Donate Today!

Join us on June 20, 2024 for our Annual Solstice Trail Run!

  • Run or walk the trails

  • Bring a reusable cup. There are no disposable cups at the water stations.

  • Become a fundraiser and get support from family and friends

  • Assemble a team to run together

  • 15K runners must be able to finish the race in 1:45

  • 10K runners must be able to finish the race in 1:30

  • Donate!

  • Start Times
    • 15K Race: 5:30PM
    • 10K Race: 6:00PM
    • 5K Race: 6:15PM

In memory of Isabella de la Houssaye

The first annual Isabella de la Houssaye award will be presented to the top female finisher in the 10K race at the Solstice Trail Run on June 20. The award will be given every year to honor Isabella’s extraordinary life. She passed away in December of 2023, after a battle with cancer. 

Isabella, a lawyer, and prolific endurance athlete, continued to go on daunting adventures around the world with her five children after being diagnosed with Stage 4 non-small-cell lung cancer.  Isabella, a non-smoker, felt it important to raise awareness of the importance of early lung cancer screening. 

She began her endurance athletic feats, on her own and with her family, in the 1990s and continued for decades. She climbed Kilimanjaro, the highest mountain in Africa, with her children on separate ascents; finished more than 20 Ironman Triathlons; competed in many ultramarathons; ran in more than 70 marathons; and bicycled across Tasmania. 

Isabella served on the Watershed’s Trail Run Committee from 2016-2023, providing insight and advice to the Watershed staff and volunteers on how to organize a successful running event. She ran the event each year and recruited her family and friends to join her Team Bella.  

According to her husband, David Crane, “the only fundraising race she ever actively helped organize was the Watershed’s annual Solstice Run. She loved the event not only because she believed passionately in the Watershed’s mission, and its contribution to land and habitat preservation and education in our area, but because it was the first race she participated in (successfully) after beginning treatment in the early spring of 2018. 

This year, Team Bella (family and friends of Isabella de la Houssaye) will be there to run in Isabella’s memory. To join the team, choose Team Bella on the Teams section of the registration site.

Register or donate Today



15k has about 400+ feet of elevation gain, 10k has approximately 200 feet of elevation gain (see charts below).

5K Elevations

10 K Elevations

15K Elevations

5K and 10K Trail map


15K Trail Map

Stay for a post-race party!

There will be a DJ, food for sale,

a beer tent, firepits, and more!

Register Today

Download the links to your GPS below:

5K Course

10K Course

15K Course

2023 was a Huge Success

Last year, the Annual Solstice Trail Run, saw runners of all levels come together for an unforgettable day of outdoor adventure, camaraderie, and environmental stewardship. The event, held at The Watershed Institute’s scenic 950-acre reserve, showcased the beauty of nature while raising nearly $30,000 to support the Watershed’s vital conservation and education initiatives. 





“Together, we are making a tangible difference in environmental conservation, advocacy, science and education.” said Watershed Executive Director Jim Waltman. “It is exhilarating to celebrate the power of community and the beauty of nature as we continue to work towards a sustainable future.” 

As the sun set on race day, about 300 participants showcased their endurance and determination, tackling the challenging 5K, 10K, and 15K trails. Runners conquered winding paths and rocky terrain, all while soaking in the breathtaking surroundings of The Watershed Institute. The event embodied the spirit of athleticism and love for nature, inspiring runners to push their limits and celebrate their accomplishments. 

After crossing the finish line, runners and supporters alike gathered under the tent from 7-9 p.m. to celebrate their achievements. The post-race party provided a well-deserved opportunity to relax and revel in the shared experiences of the day. The air was filled with the sounds of music, and the inviting firepit offered a cozy setting for making complimentary s’mores. Quenching their thirst, participants had the chance to savor the delicious beverages served by our beer sponsor, Old Hights Brewing Company of Hightstown. Additionally, pizza was available for purchase from Antimo’s Italian Kitchen of Hopewell, ensuring everyone left with satisfied appetites. 


The Solstice Trail Run celebrated individual accomplishments and recognized exceptional achievements. Medals were awarded to the first, second, and third place finishers in various categories, honoring their dedication, skill, and perseverance. Winners for various age categories for the men’s and women’s divisions also were given awards. 

The success of the Solstice Trail Run would not have been possible without the support of our participants, sponsors, volunteers, and community partners. The Watershed Institute extends its deepest gratitude to everyone who contributed their time, energy, and resources to make this event a resounding success.  

Thank you to our sponsors!

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