Why would you need bottles Amy? I certainly wouldn't take a baby that young that needed to be bottle fed as cleanliness would be a big concern, plus how hard would it be to travel with all that stuff!? But a breastfed baby I think would be fine. My main concern would be what would happen if they did get sick but if they are breastfed they are certainly not going to get sick from eating anything! And even if you do, lots of handwashing is all you need to not pass anything on. I guess the other concern is how you will be coping with everything by then - an unsettled baby can be really hard work and tiring and you might not feel much like a holiday or anything out of the ordinary.

We took DS1 interstate at 3 months and DS2 was 3 months when we went to Vanuatu, and I think that's a very easy age for travel. Pop them in a sling to soothe and carry them, pop them on the boob to feed them - too easy!! Bali we didn't do until DS2 was somewhere between 18 months and 2 years and the boys have been 3 times now. Every time they have been fine - if you are careful with where you eat and drink you are far less likely to get sick. I don't think it's difficult in Bali with kids - especially mine who eat everything.
You just answered you own question hahaha!!! Clearly if you are bottle feeding you would require bottles, if you are breast feeding you would not.

Keep in mind that if you are breast feeding and get Bali belly and are dehydrated.... Anyway, this is just my personal opinion and from the feedback that I have been given from clients who have taken children that you...feel free to take it how you wish.

Aim x