Pack lightweight breathable clothing, reef-safe sunscreen, a sun hat, swimwear, and a light rain jacket for brief showers in June. Because the Central Pacific hurricane season runs June–November, consider purchasing travel insurance that covers weather-related cancellations or disruptions. Book rental cars and inter-island flights early, as June demand rises with summer travel. At MSPA, arrive two hours before domestic departures and allow extra time for parking and security lines during peak summer days. At HNL, plan 20–30 minutes for transit to Waikiki, but expect longer times if events like King Kamehameha Day are occurring. Stay hydrated on long flights, move around during the flight to reduce stiffness, and download entertainment or offline maps before departure.