hello r/banter I have a problem

I dropped my keys down a well. How the fuck do I get them out?

1) It is too narrow to climb
2) I can't see my keys but I know they are there
3) The well is far too large to flush them out
4) I don't know any magpies
5) The keys are roughly 25 ft below ground


I thought of just using some spare washing line and making a hook, but I am thinking I need to add weight to the hook so it can swing into the little passage where the keys are

pls excuse frog I am phoneposting again