Hi there Hung.
A trip to Walt Disney World is magical
any time of the year but, during December the whimsical decorations and cheerful holiday spirit provide an extra sprinkling of pixie dust!
Based on your question above, I believe you are trying to determine the best way to make the most out of the Extra Magic Hours benefit offered at Epcot on the evening of December 25th. Since this is a very popular time of year, crowd levels will understandably be higher. Therefore, I would recommend using your additional park time to visit some of the most popular attractions you may have missed during the day. Simply
check out this link for all of the details!
At the end of a Disney Day, the resort buses are typically the ideal way to zip right back to your onsite resort guest room. However, due to the Christmas holiday and a higher probability that there will be a wait time for the motor coach bus returning to Port Orleans, I would suggest that you consider driving to Epcot if at all possible. The parking lot for this theme park is very easy to navigate and does not require an extra step in the transportation process like Magic Kingdom Park.
Thanks so much for visiting the Moms Panel and please feel free to send more questions my way prior to your trip!