If you have a paring knife and cutting board (and if you don't, just bring one in your checked bags), tropical fruit plates are REALLY easy to prepare and perfect light lunch platters to have around the pool.
Buy a fresh pineapple, some fresh mango, some bananas, some papaya, some dragonfruit, some starfruit...whatever your family loves that is "on sale" that week...if passionfruit is on sale, grab that, too
...buy a large container of vanilla yogurt (or plain yogurt or greek yogurt or any you love) - meld the passion fruit seeds into the yogurt - sweeten it if your kids like it sweeter and serve with any and all sliced fruit you bought. Have a tray of cheese and crackers next to the fruit tray and just indulge in perfect finger foods to have around the pool. You could almost serve this every day to your kids for lunch and they'd have their dairy and fruit needs covered, so they could eat those chicken nuggs or mac and cheese later.
If you're not sure the kids love passion fruit, only use some of your yogurt for the dip the 1st day...you can always mix a different thing (like mashed banana) in the next day...
It will go great with tropical drinks for the grown ups, too...and it's a nice light meal to have around potential heavy meals...
1-5 year olds also love "dip" plates, so this will be heaven for them - to grab a treat and run over and over. Yogurt also is shelf-stable, so you won't have to worry about warmth...(the cheese may only be able to be out an hour or so)...
http://www.green-energy-efficient-homes.com/unrefrigerated-yogurt.html