My husband and I are going to Kauai on September 11th for our 25th anniversary. Trying to decide between the inter-Island helicopter tour for $189.00 per person and lasting 1 hour or the Kipu Falls Zipline Tou for $94.00 per person and lasting 3 hours. I want to do the one that is the most awesome regardless of cost. I just can'tafford to do both. Any advise?