https://www.mercurynews.com/2022/09/03/bay-area-heat-wave-3-great-hikes-that-are-shady-or-cool/

Labor Day’s the ideal time to get out and enjoy nature. Of course, that’s harder to do in a heat wave the National Weather Service is calling a “marathon and not a sprint,” with temperatures in parts of the Bay rising to 108 degrees from Sunday to Tuesday.

Choose the wrong hike in these conditions and you will soon feel like R2-D2 and C-3PO melting down in the Tatooine desert. Robots presumably don’t succumb to dehydration and heat exhaustion, however, whereas humans do. Here are a three not-very-strenuous hikes in the area with plenty of shade and cooler geography, with suggestions of where to eat and drink afterward. As always, dress appropriately, wear sunscreen and carry plenty of water. (NOTE: The East Bay Regional Park District has announced that, due to high fire risk, Tilden Nature Area and many other East Bay parks will be closed on Sunday and Labor Day.)