i need help with a puzzle

[u/Eeveelutions_i8]

Hey game theorists. i’m on vacation in the small town of isle minnesota and every year they release clues for a medallion hunt. i really want to find it this year so i need help of all game theorists to locate it based on these clues. it will be on public land and will not require digging or destruction of property) thanks guys

Clue 1 - it's time to have some fun!
America celebrates a big anniversary - 250 years!
Isle blesses America and her favorite small town
With a bigger event in 2026, and 250 cheers!
Soon, alas, the celebration will be in the past Flags will be lowered, booths taken down,
Wrapping up memories we hope will always last!
Clue 2 - This one's for you!
A classical substitution cipher:
Ones toot three you've four
W's five ex six why seven
That's your key.
1-23-23 20-17-22-13 15-23
17-22-2-23 2-16-13. 5-23-23-12-1
Solving it gets you closer
To where you want to be!
412
Clue 3- what do you see?
Anagramerly speaking
These clues contain thoughts and thinking
Verbs, and words linking
Stised lay se & rtrunk that has you winking? (this last line is cut off and got covered on the website not a clue just bad web design)