Mud Bay, often referred to as North Chuckanut Bay, is a small embayment located in south Bellingham, Washington. It is known for its unique estuarine wetlands and diverse wildlife habitats, including eelgrass and potential surf smelt/sand lance spawning areas. The bay has faced environmental challenges, such as poor water quality, which has led to restrictions on recreational shellfish harvesting since 1994. Despite these challenges, Mud Bay remains a popular spot for outdoor enthusiasts due to its proximity to Chuckanut Bay and its natural beauty.
The area is also significant for its cultural and historical importance, being part of the traditional lands of the Lhaq’te’mish (Lummi Nation) and Nuxwsá7aq (Nooksack) Tribe. The bay's connection to Clark’s Point and Chuckanut Marsh makes it a vital wildlife corridor.
Efforts are ongoing to improve water quality and protect the ecological integrity of the area, making it a fascinating blend of natural beauty and conservation efforts.