If this is the 1st time you take your child for a trip, I would recommend the resort in Sabah, Phuket where arrangement is flexible - kid's swimming pool, beach and some resorts have kid's club.
Don't worry la! Kid at 3-4 is big enough, at least he can dine out, you don't have to prepare special food (congee) for him. Maybe he'll give you a surprise that he's more independent than you thought.
If this is the 1st time you take your child for a trip, I would recommend the resort in Sabah, Phuket where arrangement is flexible - kid's swimming pool, beach and some resorts have kid's club.
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ChloeMa, can you pls recommand Phuket resort with kids pool and kids club, cos planning to go there later