Originally Posted by
BESVISOR
Without knowing your budget, personal preferences, other details...What about Thailand? Phuket, Koh Samui, etc...December is pleasant, one of the best months to visit. Iniala, Amanpuri, Trisara, Rosewood, Anantara Layan, Four Seasons, few options for you to consider.
OP said 500 - 600 GBP per night earlier.