Sea Lion Caves are okay but very pricey ... Heceta Head lighthouse is gorgeous, $5 to park otherwise free, nice beach, free lighthouse tours, cool 1/2 mile trail to lighthouse. I have been there 4 times and seen whales spouting 3 of the times I was there. The trail to the lighthouse is beautiful. If you veer onto the grassy trail left of the main trail just past the caretakers house (where the trail turns right) you can go off the beaten path and enjoy spectacular views of the lighthouse, ocean and gorges. When you get to what seems like the end of these unmarked trails you will find some info plaques if you go to the right of those you can actually take another off the beaten path trail out onto the rocks. It is one of my favorite places in the world. Not many people realize that these trails are even there and it is a shame to miss them. There are no safety railings so be careful with small children, although I took a very energetic 3 year old there and he was fine with a vigilante eye kept on him, and he loved it. The kids had a blast playing in the waves and the rocks. The Florence sand dunes and beaches are stunning and not to be missed. Also lots of recreational activities. Florence is a wonderful place to take your kids or to take out of state visitors.
We hiked Hobbit Trail, China Beach Loop and Haceta Lighthouse trail from Hobbit trail, it was steep in a few places the views were amazing and I would recommend the trails to anyone looking for a relatively short/easy day hike along the ocean cliffs.