Most Molokini tour operators provide the essential snorkel equipment, but bringing the right personal items can make the difference between a good day and a great day on the water. The Hawaiian sun is intense, especially when reflected off the ocean, and conditions can change from warm and calm to breezy and cool during your return trip. Whether you're heading out for a morning snorkel adventure, an evening sunset cruise, or a winter whale watching expedition, proper preparation ensures you'll be comfortable, protected, and ready to fully enjoy your experience at one of Maui's most spectacular destinations.

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Remember that boats have limited storage space, so pack light and leave valuables at your accommodation. Most tours provide some food and beverages, but confirm what's included when you book. Reef-safe sunscreen is not just recommended—it's required by Hawaiian law to protect the delicate coral ecosystems you'll be visiting. A waterproof bag is essential for keeping your phone, wallet, and car keys dry, and bringing cash allows you to tip your crew. I recommend 20% for excellent service). With the right preparation, you'll spend less time worrying about logistics and more time marveling at the underwater wonders of Molokini Crater.

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Here are three lists, depending on whether you are going on a 1) snorkel trip, 2) sunset cruise, or 3) whale watching.