hello we are travelling to bali in September and will be my third trip but will be the first time with a child. my son will be 15 months old when we travel. I would like opinions on things like do I take a stroller to use where we can or is it better to get one there or not bother with one?. can you get good toddler supplies there like nappies wipes etc or just bring all with us. also what vaccinations should he have if any? thanks for the help and any other suggestions would be helpful