The cache is not at the posted coords. It is actually at N 40° AB.CDE W 124° FG.HIJ
Complete the It's All Happening (Near) The Zoo Adventure Lab to reveal the hidden location.
Sequoia Park is a 67-acre facility next to Sequoia Park Zoo that features walking and bicycle trails through the redwood forest, meadows, duck pond and two small creeks. The park includes two playgrounds, open turf grass, picnic tables, a restroom, a group picnic area, and a gazebo bandstand. Adjacent to the zoo is the Sequoia Park Garden which is included in the Adventure Lab.
Dogs are permitted (on leash) in the park but not in the zoo.
You can validate your puzzle solution with certitude.