Places You'll Visit:Visit Kauai (Fern Grotto, Opaeka'a Falls), Hanapepe, Koloa, Waimea. Scenic viewing of Opaeka'a Falls. Take the Smith's Boat Ride to the Fern Grotto. 90 minutes of free time in Old Koloa Town for shopping and lunch on your own. A 30-minute visit to the Kauai Coffee estate. Exploration of Historic Hanapepe Town. An extended visit to Historic Waimea Town.