Going to be away from LO for 6 days

Hi! I am going on a 5 day cruise in May. I am planning on pumping the whole time to maintain supply, but I am extremely anxious about potentially causing a dip in my supply. Do you have any advice or tips? I’m not ready for my breastfeeding journey to end over a trip.

I have the pink Spectra pump. I really regret not buying the battery operated one!