Vacation at 4 months

My family and I are going to Mexico for Christmas. We will be staying at a very nice resort and although I’m excited to get away.. I’m super anxious to be traveling while breastfeeding a 4 month old.

How do I sanitize the bottles properly without using the running water from the pipes? How is this even going to be possible.. yes I plan to continue to breastfeed but I will be pumping some so I can drink and have my husband bottle feed as well!

I know I still have two months but I’m sitting here thinking how will this even be enjoyable for me?