Is public transport reliable?

The 'TheBus' system is excellent for getting around Honolulu and Waikiki, but it is very slow for traveling to the North Shore.

Yes, tipping culture in Hawaii matches the US mainland (18-20% at sit-down restaurants).

How to plan an Oahu and Honolulu trip

Spend at least 7 days on Oahu to balance exploring the bustle of Honolulu with the laid-back pace of the North Shore. Prioritize renting a car for the North and Windward sides, while relying on ride-shares or walking for downtown Honolulu and Waikiki.

Decide on your base. Stay in Waikiki if you want walkable access to beaches, shopping, and nightlife. Choose the North Shore or Ko Olina if you want a quieter, resort-focused experience away from the city crowds.
Rent a car strategically. You don't need a car for the entirety of your trip if you are based in Waikiki. Rent a vehicle for 3-4 days to handle your 'circle island' excursions and North Shore exploration to save on daily hotel parking fees, which often run $40-$60 per night.
Book your popular activities in advance. Reserve your spot for Pearl Harbor (USS Arizona) exactly 8 weeks out at 3:00 PM HST, and Diamond Head State Monument reservations are mandatory to hike the trail. Do this as soon as you confirm your flight dates.

Is public transport reliable?: The 'TheBus' system is excellent for getting around Honolulu and Waikiki, but it is very slow for traveling to the North Shore.
Do I need to tip?: Yes, tipping culture in Hawaii matches the US mainland (18-20% at sit-down restaurants).