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For a day on the water, it’s essential to bring sunscreen to protect your skin from the sun's rays, especially since you'll be out for several hours. - Don’t forget a hat and sunglasses to shield your eyes and face from direct sunlight. A lightweight cover-up or shirt can also be handy if you want a break from the sun. - If you plan on swimming or engaging in water sports, a swimsuit and a towel are must-haves. Water shoes can also be useful if you're visiting rocky areas or beaches. - Bring along a reusable water bottle to stay hydrated throughout the day, and consider packing snacks or a picnic lunch, especially if your boat trip doesn’t include meals. Freshness note: Prices, opening hours, schedules, addresses and provider details can change. Confirm the current information directly before travelling or paying.