I took a taxi to falls. Cost 11.00. They dropped you off and 3 hours later picked you up. Then they take you to shop then take you back to the ship. My advise. Make purchases at the falls and not in town. Same items at the falls and cheaper and less pressure. Enjoy your trip
Do yourself a favor and just grab a cab outside the pier, it will be alot cheaper than going through the cruise line. The cab ride round trip is $11.00 pp. Then its $.6.00 to climb the falls. If you want a locker its $5.00. Most cruise line offered shore excusions run up to 25-30 bucks.