I recommend this place, it's beautiful, but be prepared to pay taxi drivers for a trip to Kayinda 2500 per person there and back, an environmental fee for a car in the region of 3000 tenge, then a second taxi for 500 tenge per person in one direction. All these expenses will be there upon arrival. There is a shop right by the lake. Benches are on the way to rest.
It's just a bomb! In good weather, the views simply cannot be conveyed in words or photographs. I highly recommend it. However, the road is quite tedious...