Kokoro Studio Retreat Center, RR 1, Box 192, Castleton, VT 05735. (802) 273-2278. Facilities include: studios, Japanese bath, steam, sauna, massage, pond, waterfall, extensive stone yard. Resident artists, supportive critiques, small groups, or retreat options available. Lodging options vary from tent, tepee, lodge, or private cabins. Fees charged; residencies from 1 day to 1 month. (visual, literary arts)