We were there a few weeks ago. We hiked up the trail and walked on highway 1 to Nepenthe. Ranger had info regarding where to park and where trail starts. There is also a shuttle that you can take to Nepenthe once you hike up the trail and reach highway 1.
Highway 1 is open without restrictions both from the north and south between Carmel and Cambria. All 2017 winter related road closure areas have been repaired and highway is open.
Not sure if it has changed since but in July you could get there via a trail at the nearby campground and a shuttle system. Just go to the ranger's station and they will direct you.
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