We’ll explore a world-class trail rising high on ridge lines all around the Bay Area. Begun as an audacious dream in 1989, the Bay Area Ridge Trail is reaching its 400th mile in 2021 with new and awe-inspiring miles being added every year. We’ll ascend recently completed trail segments and some soon to be opened on wild lands from Napa to Morgan Hill and through a famous park to a lofty peak in the heart of San Francisco. And we’ll visit a popular shoreline path through a beautiful but fragile marsh in busy southern Marin County threatened by the rising seas of climate change. We’ll learn about plans to secure the marsh and public access to it for decades ahead.