Learn More About the Great Bay 5K and Great Bay 55K Challenge
Exciting Teams and Ways to Win!
Being part of a team makes training and racing more fun!
Register for the Great Bay 5K | Race for a Healthy Estuary and the Great Bay 55K Challenge!
Registration for 2021 will be available soon.
Back for 2021, the Great Bay 55K Challenge is a great opportunity to complete a virtual 55K route around the Great Bay Estuary.
Countdown to the GB5K!
The Great Bay Stewards are proud to sponsor the 22nd annual Great Bay 5K. All proceeds from this important non-profit fundraiser will be used to protect Great Bay through support of conservation efforts by the Great Bay National Estuarine Research Reserve, as well as educational programs at and capital improvements to the Great Bay Discovery Center.