When packing for Grand Bahama, focus on gear that supports outdoor exploration and "Out Island" adventures. Reef-safe sunscreen and biodegradable insect repellent are essential, especially if you plan to hike the nature trails of the Rand Nature Centre or kayak through mangroves where sand flies can be active at dusk. Pack sturdy water shoes or hiking sandals with good grip for navigating the limestone caves and rocky shorelines. A dry bag is highly recommended for boat tours and snorkeling trips to Peterson Cay to keep your electronics safe from sea spray. Since the island is less formal than Nassau, lean into casual, quick-dry clothing, but keep a light sweater or pashmina handy for the air-conditioned shops at Port Lucaya or the occasional breezy island evening.