IT WOULD BE UNSAFE TO TRY TO ACCESS THIS CACHE FROM HIGHWAY 17.
If you are walking the trail or biking it, there are some choices for the safest parking. At the corner of Hwy 17 and Trace Dr, at the South end of this part of the trail, there is a pull-off area with room for about 2 cars. You can also access the trail from the Oyster Recycling Center, parking coords are provided below. Another option is to use the Huntington Beach State Park parking lots, but there is a $5.00/person fee to enter the park, unless you have a state park pass.