Join Friends of Five Creeks and Berkeley Path Wanderers Assn. on an easy. level walk exploring both a new extension of the Bay Trail and the last of winter’s “King Tides,” showing us water levels likely to become the “new normal” as global warming raises sea level. Meet at 10 AM at Sea Breeze Deli, south side of University Avenue just west of I-880/580. No dogs, please; the hike crosses areas where they are banned.