The well next to the Woodland Stable has no ladder, so you'll need to find another way out.

Well Location

Woodland Stable Well is next to Woodland Stable, at 1084, 1159, 0002.

Hot Springs

If you jump into the well, you fall into the water with no way back up. Use bombs or a rock hammer on the boulders in the wall, and you will find a hot spring, where you can heal up, and you can also drop bird eggs to make hard boiled eggs.

You can get out by teleporting.