Sorry to hear about your phone. In my opinion , it is gone Phone are not magnetic , so you can't use a magnet to retrieve it. Swimming is a no no. And least but not least, phones and water don't mix. ☹️
Hello Ali, I don't think there is much that can be done... Try asking one of the park's caretaker and see if they would be willing to help you? Tell them you are concerned that it may cause pollution and/or be eaten by an animal/fish. I hope you get the help you need with fishing it out of the lake!
I'd get another one
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