I just found out about the Beach Walk Project, in which Stein Kretsinger and Robert Weinman are walking and kayaking 1,600 miles along the coast from Miami to Manhattan to raise awareness about water quality and coastal issues. They will also hold a series of meetings with children and community members along the way (there are two meetings this weekend in my area) to encourage them to become involved in responsible stewardship of their watersheds. The walk is being sponsored by the Waterkeeper Alliance.
The project has a blog where you can track their progress and read their amusing and not-so-salty sea tales. I hope they get some more media attention, because their cause is certainly worthy.