The short answer to what to wear for a boat trip in Indonesia's tropics is light, quick-dry clothing, closed-toe sandals or reef shoes for landings, a wide-brimmed hat, reef-safe sunscreen and one smart-casual outfit for dinner. Days on deck run hot and bright, evenings can turn breezy once the boat is moving, and most guests end up wet and dry several times a day, so the goal is fabric that dries fast and layers that come off easily.
What to wear for a boat trip: deck clothes for hot, sunny days
Cotton and linen feel nice on land but stay damp at sea, so pack technical or quick-dry fabrics instead: swim shorts or a rash vest, light trousers or a sarong, and a couple of loose shirts with long sleeves for sun cover rather than warmth. A phinisi's open deck has almost no shade at midday, so a hat that stays on in wind and a pair of polarised sunglasses earn their place in the bag before anything else. Bring more than you think for a week on board, since laundry service varies by boat and salt air keeps everything slightly damp.
Footwear for tenders, beaches and reef walks
Deck shoes should have a soft, non-marking sole, since crews are strict about protecting varnished wood. For landings on Komodo, Rinca or the beaches around Raja Ampat, closed sandals or reef shoes protect your feet from coral rubble and hot sand better than flip-flops. If a ranger-guided walk is on the itinerary, such as the dragon walks in Komodo National Park, proper walking shoes matter more than style: the trails are dry, uneven and can be warm underfoot by mid-morning.
Swimwear and sun protection
Bring at least two or three swimsuits so one is always dry, plus a UV rash vest if you plan to snorkel for long stretches, since the sun reflecting off the water burns faster than it feels. Reef-safe, mineral-based sunscreen is worth seeking out specifically for Raja Ampat and Komodo, both sitting inside some of the most protected reef systems on earth. A dry bag for phone and camera is a small addition that saves a real headache after a tender ride with spray coming over the bow.
A few practical extras worth packing
Beyond clothing, a handful of small items make a real difference on board. A headlamp or small torch is useful for a night walk to the bathroom on boats where deck lighting is limited, and a compact power bank covers days when the boat's sockets are in demand. Insect repellent matters more on the islands than at sea, since mosquitoes gather on Rinca, in the mangroves near Kalong and on some of the quieter beaches in Raja Ampat. If you read on paper rather than a screen, bring more than one book, since afternoons at anchor between activities are genuinely unhurried and there is little else to do but read, nap or watch the water.
What to pack for cooler evenings and air conditioning
Evenings on the water can be cooler than the day suggests once the engines are running or the wind picks up, so a light jumper or long-sleeved layer is worth having even in a tropical climate. Cabins are air-conditioned on almost every yacht on our board, and some guests find that colder than expected after a hot day outside, so pack something for sleeping that you would not normally bring to the tropics. One collared shirt or a simple dress covers any smarter dinner the chef puts on, though most nights on board are genuinely casual.
Laundry, luggage and what to leave at home
Soft-sided bags pack easier into small cabin storage than hard suitcases, and many charters ask guests to fly in on smaller aircraft to reach Labuan Bajo or Sorong, where luggage space is tighter than on a long-haul flight. A duffel or soft holdall that folds flat once empty also saves cabin space for the rest of the trip, which matters more on smaller phinisi than on a large expedition yacht. Leave heavy shoes, jeans, hairdryers with the wrong plug and anything that needs ironing at home, since cabins rarely have room for equipment you will use once. If you are unsure what a specific yacht provides, from towels to snorkelling gear, our guide to what a charter includes covers the rest in more detail, and the crew on any boat you shortlist will answer specifics before you book.
Plan your charter
Once your kit list is sorted, the next step is picking the boat and the dates. See which yachts are open for your travel window, or send your dates and we will match a yacht and route to what you want to see.
Frequently asked questions
Do I need special clothing for diving or snorkelling on a charter?
A rash vest or wetsuit top helps with both sun and stings, and most dive-focused yachts carry wetsuits for guests to borrow or hire. Bring your own mask and snorkel if you have a preferred fit, though most boats supply gear as part of the charter.
Is there a dress code for dinner on board?
No formal dress code applies on any yacht we work with. Smart-casual is as dressed up as it gets, and many guests eat every meal in the same swimwear and cover-up they wore on deck.
What should I wear to visit Komodo dragons?
Closed walking shoes, long trousers or trousers that cover the ankle, and a hat, since the ranger-guided trails are dry, dusty and offer little shade. Rangers will brief you on safe distance and behaviour before the walk begins.
Will I need warm clothing at any point?
Only for early mornings or evenings underway, when a light layer is useful. Indonesia's charter routes stay tropical throughout, so nothing heavier than a jumper is needed even on longer trips toward the Spice Islands.