A big yes!! Just remember you need is winter trek gear and a good grip with enough lug trekking shoes. Other than this an extra winter layer is important.
So Good Luck Happy Trekking Bro!
The lake appears to be especially appealing during the winter months of December to March when the lake is frozen and an air of tranquility envelopes it. A trip to the Kareri Lake is thus definitely not worth a miss, especially for nature lovers.