Grinchmas Universal Studios 2025 Dates And Times. 29, 2025, and can be booked by visiting www.universalorlando.com/holidays. Universal orlando begins decorating for christmas in islands of adventure at the end of october.
Grinchmas (universal islands of adventure) for those of you who love the grinch, there is no finer time to visit universal islands of adventure than during grinchmas. Be sure to check out the magic of christmas at hogwarts castle.