Sun and heat
- Reef-friendly sunscreen (lotion rather than spray on deck), sunglasses and a hat
- A light long-sleeved shirt for the hottest hours
- Water — ask whether drinking water is included on your catamaran (it is on Fountaine Pajot 44)
Swimming
- Swimwear and a towel (towels are included only on some boats)
- Your own mask if you prefer it — several catamarans carry snorkeling equipment
- Water shoes for rocky beaches
Food and drinks
Many catamarans allow you to bring your own food and drinks; some offer a barbecue or catering as an extra. Confirm it in your offer.
Comfort
- Soft-soled shoes or bare feet on deck
- A light jacket for the evening or the open sea in spring and autumn
- Motion-sickness tablets if you are sensitive — catamarans rock much less than monohulls, but the open coast can still have a swell
Documents and money
Passports are not usually needed for a day trip inside Montenegro. Bring a card or cash for extras paid on board, if any are agreed.