Start your day with a reinvigorating hike up on Diamond Head; from its observation deck you will enjoy a spectacular view of Waikiki coast and the ocean all around.
After descending the mountain, you will head to Kailua, a town with 2.5 miles of beach and a city center full of fashionable stores. You will have a full three and a half hours of free time to relax and enjoy strolling and shopping.
The last stop, it's going to be the Kaneohe Bay sandbar, a popular spot often showed on TV and mentioned in guidebooks. Here you will have another 3 hours to relax, enjoy lunch on the boat, and snorkeling in a breathtaking scenery, surrounded by 360 degrees of emerald blue sea.