Hi Jolene, and greetings from one fellow Bluenoser to another!
The
Park Hopper Plus Option is a wonderful add-on when purchasing your Walt Disney World Resort Theme Park Tickets. My family loves the Park Hopper Option, which gives us the ability to tour one Walt Disney World Theme Park by day, and then head over to a different park for some nighttime entertainment. The Plus Option adds even more fun. When adding the Plus Option to your 5 Day Park Hopper tickets, in addition to admission for 5 days to the Walt Disney World Theme Parks, you will also receive 5 days of admission to Disney's Typhoon Lagoon Water Park, Disney's Blizzard Beach Water Park, ESPN Wide World of Sports Complex, Disney's Oak Trail Golf Course, Fantasia Gardens and Fairways Miniature Golf, and Winter Summerland Miniature Golf. These admissions can be used on the same day that you are visiting a Walt Disney World Theme Park, or you can extend your fun for up to 10 days by using them on days when you will not be visiting a Theme Park! The only restriction is that all admission on your ticket will expire within 14 days of the ticket's first use.
To answer your question, Jolene, you are certainly able to use your 5 Day Park Hopper Plus tickets to visit one of the Walt Disney World Water Parks prior to visiting your first Walt Disney World Resort Theme Park. However, as soon as you use the ticket for admission anywhere, your 14 day admission window will be activated.
Also, please remember that if you are planning to attend
Mickey's Not-So-Scary Halloween Party (which I HIGHLY recommend!), you will need a special party ticket to join in on all of the SPOOKTACULAR fun!
Wishing you a FRIGHTFULLY fantastic upcoming trip!
Trish