Hello Krystal!
Welcome to planDisney. Your trip is just a few weeks away and I just know you must be so excited! It sounds like you have some magical and delicious things in store and I'm happy to help.
Bell Services is available to assist with guest luggage on arrival and departure dates. I like getting an early start on my park days so I often drop my bags off and head directly to the parks while waiting for my resort room to be ready. Last year, I had breakfast plans at a resort where I was not a guest and wanted to check how best to utilize the service. Though I had hoped to drop my bags off while I ate and then leave them there to enjoy a few hours at Disney Hollywood Studios, Cast Members via online chat let me know this would not be an option. Bell Services is reserved for the use of registered guests and therefore they would not be able to hold my bags without a reservation.
Similarly, Bell Services will not be able to transfer your luggage to
Disney's Old Key West Resort from
Disney's Riviera Resort since you won't be a guest of Riviera. I know this is not the answer you hoped for, but that is the policy as I understand it.
I'd recommend heading to Disney's Old Key West first to drop your luggage off before your breakfast reservation. Alternatively, you can leave your bags with Bell Services at the
Walt Disney World Dolphin Hotel while you enjoy your breakfast. I stayed there a few years ago and they were more than happy to hold my luggage while I enjoyed a few extra hours in the parks before my flight home.
After breakfast, you can board the
Disney Skyliner to EPCOT International Gateway and walk or sail on the Friendship Boats back over to the Dolphin to retrieve your items. You can also take the Skyliner to Disney's Hollywood Studios via a transfer at Disney's Caribbean Beach Resort, then walk or take the Friendship Boats to retrieve your luggage. Keep in mind that you will not be able to board any form of complimentary Walt Disney World Resort transportation with your luggage.
I hope this helped, Krystal. If we can answer any additional questions please come back and let us know. In the meantime, I hope you have a wonderful vacation and a most magical meal at
Topolino's Terrace – Flavors of the Riviera, if that's where you plan to dine. It's my favorite Character Meal on property!
Magic and memories,
Amy