Gan,
Have a good trip! Some tips when travelling with baby (I've been doing that countless times this year!)
Book a nice hotel since you might be spending most time at the pool and in the room
(which you already have, so that's good)
Things to check/bring:
1. Make sure hotel has baby cot (with bumper/padding) and baby bath tub. If they don't have bath tub, you might consider bringing your own inflatable one, or just bathe baby under the shower.
2. Are you ok with using hotel towels for baby or prefer your own? Bring your own if you prefer.
3. Bring baby's favourite pillow/bolster for sleeping. Also I normally bring their own blanket.
4. Bring steriliser, enuf milk bottles, FM, drinking water and hot water flask.
5. Baby food and eating utensils. Normally when I travel, will feed them cereal or baby jar food.
6. I normally bring enough FM and diapers for one day and then buy from there. No need to bring for the whole trip, rather heavy.
7. Swimming suit, hat and sunblock for baby
8. Lots of baby biscuits for them to munch in between
9. Meds - panadol, thermometer
10. Do you have one of those baby seat cover (the kind you can attach to normal chair and let baby sit)? Very useful.