Bachelorette help!!

Candace
My best friend has chosen me as her Matron of honor in her November wedding. I am beyond excited and extremely honored and happy. The problem is her bachelorette party. She wants to go on a 3 night cruise to Ensenada. We would leave Thursday night and return Sunday morning. My exclusively breastfed LO will be 14 months by that time. Thinking about it now, I don't feel comfortable! But how's it going to be when he's over a year old??? I'm a FTM so I don't know what to expect... and I over reacting? Is it OK to leave him at that age?? I've only left him for a couple hours, once... what about feeding him bottles?? Will he want to nurse after so long without?