In the 60s my grandmother went there often to look at birds. Says Derf
This lake is so wonderful. Don't leave Mary Alice Lake without stopping by Niagara Springs State Park, and Pillar Falls is always fun to check out. You'll meet a lot of people from Twin Falls here, and a delightful lake like Murtaugh Lake is a delightful spot to go to. Dry warm beds await you at Red Lion Canyon Springs; if you're here you can play some golf at Blue Lakes Country
club. You'll wish for more hours in a day to enjoy all the entertaining stuff at Mary Alice Lake. If you need a spot to stay Super 8 Twin Falls is a nice choice, and camping is available at Blue Lakes Mobile Court.