Dropped iPhone 4S in lake for 4-6 hours

So i was fishing today and i lost my iPhone 4S in my lake, i didn't realize til later, took it out, and put it in a sealed bag of rice, i have no idea what to do or how long to wait… I love this phone, can somebody help, and i can't replace it, just saying…

It's already destroyed. I'm sorry

Keep it in rice 36-48 hours. If it doesn't work after, it's dead; you'll have to get a new phone.

Most phones do not successfully survive a dunking.