Tolowa Dunes, toured the Battery Point lighthouse, and walked the Trillium Falls trail. This photo was taken at the aquarium, which we did not go into.
If you want to visit the Dunes, do NOT go unprepared. There is no information available at the park entrances. We showed up to trailheads to find no information as to how long trails were or where they went. The Lighthouse is well worth seeing, but it's only open during low tide, so plan ahead.