Starting at Battery Slaughter, recently opened to the public with its expansive views of the Golden Gate and the bay, we strolled through the restored landscape and old 1890s military installations. We made our way to the official "Tunnel Tops" park between the Main Post and Crissy Field, wandered past Quartermaster Reach, and eventually out to the long walk along the Marina Green. There we saw a few surprising monuments amidst the hundreds of tots battling it out in goalie-free soccer. We passed through Fort Mason and its spectacular community garden, before concluding our WalknTalk at the new Francisco Park built over San Francisco's first reservoir site after years of abandonment.