Take taxi from airport to hotel or cruise pier if pressed for time or have multiple people. Otherwise, consider shuttle if on a budget.

Get a musubi maker from ABC Store.

Historic Honolulu

Chinatown (mile away from historic tour above)

Honolulu Waterfront

Waikiki

Lanikai Beach

Diamond Head

Restaurants

Waiola Shave Ice

Waiola Bakery & Shave Ice II