Hi Lynne!
Welcome back to the Disney Park Moms Panel! Your countdown is almost finished, soon you will be at the "Happiest Place On Earth" making wonderful memories with your family. I love
Pirates and Pals Fireworks Voyage, and I have a four year old princess as well. I can tell you that the experience is not at all scary or spooky, but it is very Pirate themed. The loudest part of the voyage would be the music that is piped in for Wishes Nighttime Spectacular, and of course the fireworks themselves, which are significantly muted as the distance is rather far away. Captain Hook and Smee do pay a visit, however, interaction with the characters are very brief; They do not go on the boat with guests. The captain of your boat will tell jokes and play trivia type games with guests and my princess had a great time during the experience.
Have you considered
Tomorrowland Terrace Fireworks Dessert Party? This experience is one of my family's favourite ways to view Wishes Nighttime Spectacular. For this experience, guests arrive around an hour prior to the fireworks, where you can enjoy an all you care to eat dessert buffet and then enjoy the fireworks from Tomorrowland Terrace, where you will not have to contend with the crowds.
I hope you have a Magical time on your upcoming Walt Disney World Resort Vacation Lynne. Please come back and visit us again with any other questions you have during your final few days before your trip!
Stephanie