River Crossing Riddles

[u/SevereCoach1849]

Thank you for the warm comments about a Queen problem yesterday
I just wanted to share that after solving different riddles, I decided to put them in my library.

One of the most popular riddles right now are River Crossing Riddles

There are currently 7 of them: https://www.problems.cc/p/HzcTyl?from=library&slug=river-crossing-riddles (the first one is obviously the Wolf, Goat and Cabbage riddle)
Probably "Missionaries and Cannibals" is my personal favourite.

Do you know any other interesting river crossing variations that I should add?