ASIA
There is very little naturist activity in Asia. Thailand and Indonesia (in Bali) have the most clothing optional resorts/hotels and many are gay friendly. In other Asian countries, clothing optional is basically not legal. But can be nude in hot springs (onsen) in Japan or spa in South Korea.
INDONESIA
Bali au Naturel (Singaraja, Bali; clothing optional hotel: gay friendly; $-$$)
Sunclad Villa/Laki Uma Villa (Kuta, Bali; clothing optional hotel: gay friendly; $-$$)
Spartacvs Bali Hotel (Seminyak, Bali; gay clothing optional hotel; $-$$)
Villa Angelo (Seminyak, Bali; gay clothing optional guesthouse; $-$$)
PHILIPPINES
Fridays Island Paradise (Malapacao Is, Palawan; clothing optional island; $$$$)
THAILAND
Chan Resort (Pattaya; naturist resort: family; $-$$)
Oriental Village Chiang Mai (Chiang Mai; clothing optional resort; $)
Lemon Tree Resort (Phuket; naturist resort; $$-$$$$)
Thai Bamboo Guesthouse (Cha Am, Petchaburi; clothing optional inn/guesthouse; $-$$$)
Phuan Naturist Village (Chonburi; naturist resort: family; $-$$)
Naturist Family Camp (Phetchaburi; naturist campsites with huts for rental; $)
Barefeet Naturist Resort (Bangkok; naturist guesthouse: gay friendly; $)