Korumburra Botanic Park is a hidden gem. Come and enjoy nature in a quiet location, and take a stroll along the tracks that meander along beside. Coalition Creek. There are several seats where you can just sit and ponder, picnic tables and nearby toilets. There's always some wildlife that you may encounter. Listen for the gurgle of giant earthworks, watch out for the bird life, and keep an eye out for snakes in the warmer months.
The cache, you'll need to BYO pen.
Enjoy you time here.