Be an Informed Park Visitor! Rains and high surf conditions lead to significant erosion along the coast The Pacific Ocean is wild and majestic and many of us enjoy walking the trails and bluffs above it. This season, King Tides combined with El Niño have led to much higher tides than normal. Further erosion is anticipated and visitors are encouraged to exercise caution. This includes staying on designated trails and keeping your dogs on leash at all times. San Mateo County Parks also put out this video encouraging visitors to the coastline to help protect sensitive habitats.