Nokrek Biosphere Reserve is located in the Garo Hills district 2 kms from Tura Peak. The reserve is one of the least disturbed forest tracts of the sub-himalayan ranges. It is the first biosphere reserve of its kind in the northeast region. The Garo Hills contain many natural limestone caves. The famous Siju Cave is located very close to the Nophak Lake near the Simsang River game reserve. The Cave is filled with water and is miles long.
