[quote=@Guardian Angel Haruki]
So the tower is 60 feet away...

How many feet of movement would it take to get to the top of the tower/the bell? And would ringing the bell be a free action, or would it take a regular/bonus action?
[/quote]

It is indeed.

The tower is 30 feet tall, so climbing it would require another 60 feet of movement. Ringing the bell is then a free object interaction.