Plenty in yhe city. Harbor walks, Mount Vernon, Druid Hill, Fort McHenry (the Free bus aka the Banner Route drops you off there.) Grill area, vending machine, restrooms, grass, trees, benches also there. Canton Walks.
(ALONG Boston street trail by harbor. Assisted by a loved one, meet ups at local eatery first. Grab your water, towels, and good shoes, check heat advisory and weather conditions.