If there is no place to donate the boat cut it up into manageable pieces and take it to the dump. It's very therapeutic.
Donating is a really good plan but I've found there's not much interest in old beat up boats. Give donating a try and then just cut it up, throw it out, be done with it and move on.
I tried doing the right thing by donating and all I got was frustrated and tired. Ended up at the dump. but,,,, if someone will take it then donate it.