Walking cane with a seat

I am looking for a walking cane with a seat. The way it was explained to me it has a single pole with a some sort or washer type base so that it will not sink in the mud went sitting on it. The handle folds out to create a seat. My father in law has bad knees and had one given to him and he recently dropped it and broke. He said he was told that it was originally made for golfers but he uses it for hunting. Any ideas on this one let me know. I have google it but only could find the tripod styel with 3 legs that would not work. The legs will sink in the ground so the type he expained to me would work better.
I thought you guys might be able to help.

Thanks

Found one. Spectator seat walking stick is what it was called.

Thanks.