Will be in Astana for 2 days

I will be in Astana for 2 days and wondering if anyone can give me info on a group tour agency that goes to Burabay National Park. I am traveling by myself so a private tour would most likely be too expensive. Any information would be greatly appreciated. Also, is there a place where expats typically like to go for food/drinks? Thank you for any information you can provide. Have a great day/week! :)