Evolving Shorelines

Creating a shared vision for preservation and recreation at Bothin Marsh.


Bothin Marsh is a well-loved stretch of shoreline that offers much in the way of recreation and wildlife, with unique plants and animals surrounded by urban development. With current sea level rise projections, the preserve will lose a significant amount of vital wetland habitat by 2030. The Mill Valley-Sausalito Multi-Use Pathway (Bay Trail) will also be greatly affected.

To better understand what is at stake, Marin County Parks and One Tam partners (National Park Service, California State Parks, Golden Gate National Parks Conservancy, and Marin Municipal Water District) worked with local scientists to assess existing conditions, potential future impacts from climate change and sea level rise, and potential adaptation challenges. This information was shared with the community during a series of Evolving Shorelines events.

Evolving Shoreline events were held in 2018 to share knowledge and engage the community in developing a shared vision for protecting this open space. The events offered hands-on experiential activities, like kayaking during King Tides. Attendees at the events also learned about nature-based solutions to address flooding, and collaborative adaptation strategies that would have multiple benefits to the ecosystem and the community. Feedback from the events is being used to develop a community vision that will inform future restoration design options at the preserve.