What is this insect or lake dweller?
That is a mole cricket. Order Orthoptera, family, Gryllotalpidae https://en.wikipedia.org/wiki/Mole_cricket
I'm not surprised you live by a lake. They burrow in sandy soil or sand, often right up to the water's edge. They can fly, but spend most of their time underground. You do not need to save it, as it will find its way back to its home if you just let it go. They are not pests. They don't bite, or spread disease.