is Dolphin Cave at Treasure Reef in walking distance from Dunn Falls? - or do you need a cab?

also - is it very far from Dunn Falls to Cayala Botanical Gardens

I've not been to Dolphin Cave at Treasure Reef, but normally reefs are in the water and require a boat to get to. It's a good ways to get to the falls. I couldn't find anything on Cayala Botanical Gardens. We went on a tour to Fern Valley and Dunn's River Falls on one of our visits, we definitely needed a cab for that. Hope this helps a little.