Hi Kathleen!
Thank you for visiting the Moms Panel!
The Electrical Water Pageant is something my family always enjoys when we visit Walt Disney World Resort, and this runs nightly, weather permitting.
Yes, you are welcome to visit the beaches of Disney's Grand Floridian Resort or Disney's Polynesian Resort to view both the Electrical Water Pageant and Wishes Nighttime Spectacular. The usual schedule for the pageant is:
Disney's Polynesian Resort - 9.00pm
Disney's Grand Floridian Resort and Spa - 9.15pm
Disney's Wilderness Lodge Resort - 9.35pm
Disney's Fort Wilderness Resort & Campground - 9.45pm
Disney's Contemporary Resort - 10.05pm
If you have any other questions, please come back and ask me - I would be happy to help you plan your magical vacation!